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Wu Z, Liang G, Kong Pang W, Zou J, Zhang W, Chen L, Ji X, Didier C, Peterson VK, Segre CU, Johannessen B, Guo Z. Structural Distortion in the Wadsley-Roth Niobium Molybdenum Oxide Phase Triggering Extraordinarily Stable Battery Performance. Angew Chem Int Ed Engl 2024; 63:e202317941. [PMID: 38197798 DOI: 10.1002/anie.202317941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 01/11/2024]
Abstract
Wadsley-Roth niobium oxide phases have attracted extensive research interest recently as promising battery anodes. We have synthesized the niobium-molybdenum oxide shear phase (Nb, Mo)13 O33 with superior electrochemical Li-ion storage performance, including an ultralong cycling lifespan of at least 15000 cycles. During electrochemical cycling, a reversible single-phase solid-solution reaction with lithiated intermediate solid solutions is demonstrated using in situ X-ray diffraction, with the valence and short-range structural changes of the electrode probed by in situ Nb and Mo K-edge X-ray absorption spectroscopy. This work reveals that the superior stability of niobium molybdenum oxides is underpinned by changes in octahedral distortion during electrochemical reactions, and we report an in-depth understanding of how this stabilizes the oxide structure during cycling with implications for future long-life battery material design.
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Affiliation(s)
- Zhibin Wu
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Gemeng Liang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Wei Kong Pang
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Jinshuo Zou
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Wenchao Zhang
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Libao Chen
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Xiaobo Ji
- State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Christophe Didier
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia
| | - Vanessa K Peterson
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia
| | - Carlo U Segre
- Department of Physics and Center for Synchrotron Radiation Research and Instrumentation, Illinois Institute of Technology, Chicago, IL, 60616, USA
| | - Bernt Johannessen
- Australian Synchrotron, 800 Blackburn Rd, Clayton, VIC 3168, Australia
| | - Zaiping Guo
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
- Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
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2
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Liu N, Cao Y, Zhu YL, Wang YJ, Tang YL, Wu B, Zou MJ, Feng YP, Ma XL. Spinodal Decomposition-Driven Endurable Resistive Switching in Perovskite Oxides. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31001-31009. [PMID: 34156226 DOI: 10.1021/acsami.1c06649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Common pursuits of developing nanometric logic and neuromorphic applications have motivated intensive research studies into low-dimensional resistive random-access memory (RRAM) materials. However, fabricating resistive switching medium with inherent stability and homogeneity still remains a bottleneck. Herein, we report a self-assembled uniform biphasic system, comprising low-resistance 3 nm-wide (Bi0.4,La0.6)FeO3-δ nanosheets coherently embedded in a high-resistance (Bi0.2,La0.8)FeO3-δ matrix, which were spinodally decomposed from an overall stoichiometry of the (Bi0.24,La0.76)FeO3-δ parent phase, as a promising nanocomposite to be a stable and endurable RRAM medium. The Bi-rich nanosheets accommodating high concentration of oxygen vacancies as corroborated by X-ray photoelectron spectroscopy and electron energy loss spectroscopy function as fast carrier channels, thus enabling an intrinsic electroforming-free character. Surficial electrical state and resistive switching properties are investigated using multimodal scanning probe microscopy techniques and macroscopic I-V measurements, showing high on/off ratio (∼103) and good endurance (up to 1.6 × 104 cycles). The established spinodal decomposition-driven phase-coexistence BLFO system demonstrates the merits of stability, uniformity, and endurability, which is promising for further application in RRAM devices.
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Affiliation(s)
- Nan Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yi Cao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yin-Lian Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yu-Jia Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yun-Long Tang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Bo Wu
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Min-Jie Zou
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yan-Peng Feng
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiu-Liang Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- State Key Lab of Advanced Processing and Recycling on Non-ferrous Metals, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, China
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3
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Insight into long-period pattern by depth sectioning using aberration-corrected scanning transmission electron microscope. Ultramicroscopy 2019; 209:112885. [PMID: 31722280 DOI: 10.1016/j.ultramic.2019.112885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/28/2019] [Accepted: 11/03/2019] [Indexed: 11/23/2022]
Abstract
Long-period patterns (LPPs) are widely observed by transmission electron microscopy (TEM) in the study of nanoscale materials. Identifying the origin of LPPs is of significant importance when interpreting TEM images, and for an in-depth understanding of material characteristics. However, the two most common LPP categories, modulated structure and moiré patterns, are not easily differentiated by conventional TEM (CTEM). In this work, an LPP was observed in Cu2-xSe nanoplates by CTEM. And then the depth sectioning with an aberration-corrected scanning transmission electron microscope (AC STEM) has been performed to determine the LPP type. Two misorientated layers were recognized from the depth-series of atomic resolution images of an LPP region, confirming the LPP is a moiré pattern caused by two twisted stacked crystal flakes which commonly exists in nanosized materials. This depth sectioning method is generally applicable for structural characterization of layered systems, and is a powerful approach for the in-situ structural probe of nanomaterials. It is promising to be extended to fast three-dimensional (3D) reconstruction.
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4
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Beqiri D, Cascos V, Roberts-Watts J, Clark ER, Bousquet E, Bristowe NC, McCabe EE. Tuning octahedral tilts and the polar nature of A-site deficient perovskites. Chem Commun (Camb) 2019; 55:2609-2612. [PMID: 30756099 DOI: 10.1039/c8cc10126d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein we highlight the ability to tune the structural chemistry of A-site deficient perovskite materials Ln1/3NbO3. Computational studies explore the balance between proper and hybrid-improper mechanisms for polar behaviour in these systems.
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Affiliation(s)
- Dashnor Beqiri
- School of Physical Sciences, University of Kent, Canterbury, Kent, CT2 7NH, UK
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5
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Chen A, Su Q, Han H, Enriquez E, Jia Q. Metal Oxide Nanocomposites: A Perspective from Strain, Defect, and Interface. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803241. [PMID: 30368932 DOI: 10.1002/adma.201803241] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/13/2018] [Indexed: 06/08/2023]
Abstract
Vertically aligned nanocomposite thin films with ordered two phases, grown epitaxially on substrates, have attracted tremendous interest in the past decade. These unique nanostructured composite thin films with large vertical interfacial area, controllable vertical lattice strain, and defects provide an intriguing playground, allowing for the manipulation of a variety of functional properties of the materials via the interplay among strain, defect, and interface. This field has evolved from basic growth and characterization to functionality tuning as well as potential applications in energy conversion and information technology. Here, the remarkable progress achieved in vertically aligned nanocomposite thin films from a perspective of tuning functionalities through control of strain, defect, and interface is summarized.
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Affiliation(s)
- Aiping Chen
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Qing Su
- Nebraska Center for Energy Sciences Research, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Hyungkyu Han
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Erik Enriquez
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Quanxi Jia
- Department of Materials Design and Innovation, University at Buffalo-The State University of New York, Buffalo, NY, 14260, USA
- Division of Quantum Phases and Devices, Department of Physics, Konkuk University, Seoul, 143-701, South Korea
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7
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Egger DA, Bera A, Cahen D, Hodes G, Kirchartz T, Kronik L, Lovrincic R, Rappe AM, Reichman DR, Yaffe O. What Remains Unexplained about the Properties of Halide Perovskites? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800691. [PMID: 29569287 DOI: 10.1002/adma.201800691] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Indexed: 05/06/2023]
Abstract
The notion that halide perovskite crystals (ABX3 , where X is a halide) exhibit unique structural and optoelectronic behavior deserves serious scrutiny. After decades of steady and half a decade of intense research, the question which attributes of these materials are unusual, is discussed, with an emphasis on the identification of the most important remaining issues. The goal is to stimulate discussion rather than to merely present a community consensus.
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Affiliation(s)
- David A Egger
- Institute of Theoretical Physics, University of Regensburg, 93040, Regensburg, Germany
| | - Achintya Bera
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - David Cahen
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - Gary Hodes
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - Thomas Kirchartz
- IEK5-Photovoltaics, Forschungszentrum Jülich, 52425, Jülich, Germany
- Faculty of Engineering and CENIDE, University of Duisburg-Essen, 47057, Duisburg, Germany
| | - Leeor Kronik
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel
| | - Robert Lovrincic
- InnovationLab, 69115, Heidelberg, Germany
- Institute for High Frequency Technology, TU Braunschweig, 38106, Braunschweig, Germany
| | - Andrew M Rappe
- Department of Chemistry, University of Pennsylvania, Pennsylvania, PA, 19104-6323, USA
| | - David R Reichman
- Department of Chemistry, Columbia University, New York, NY, 10027, USA
| | - Omer Yaffe
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel
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8
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Multi-nanolayered VO 2/Sapphire Thin Film via Spinodal Decomposition. Sci Rep 2018; 8:5342. [PMID: 29593280 PMCID: PMC5871865 DOI: 10.1038/s41598-018-23412-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 02/09/2018] [Indexed: 11/08/2022] Open
Abstract
Coating of VO2-based thin film has been extensively studied for fabricating energy-saving smart windows. One of the most efficient ways for fabricating high performance films is to create multi-nanolayered structure. However, it has been highly challenge to make such layers in the VO2-based films using conventional methods. In this work, a facile two-step approach is established to fabricate multilayered VO2-TiO2 thin films. We first deposited the amorphous thin films upon sputtering, and then anneal them to transform the amorphous phase into alternating Ti- and V-rich multilayered nanostructure via a spinodal decomposition mechanism. In particular, we take advantage of different sapphire substrate planes (A-plane (11-20), R-plane (1-102), C-plane (0001), and M-plane (10-10)) to achieve different decomposition modes. The new approach has made it possible to tailoring the microstructure of the thin films for optimized performances by controlling the disorder-order transition in terms of both kinetic and thermodynamic aspects. The derived thin films exhibit superior optical modulation upon phase transition, significantly reduced transition temperature and hysteresis loop width, and high degradation resistance, these improvements indicate a high potential to be used for fabricating the next generation of energy saving smart windows.
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9
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Yao L, Inkinen S, Pacherova O, Jelinek M, van Dijken S, Tyunina M. Chemical-bond effect on epitaxial strain in perovskite sodium niobate. Phys Chem Chem Phys 2018; 20:4263-4268. [PMID: 29364292 DOI: 10.1039/c7cp08449h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Epitaxial films and heterostructures of perovskite oxides attract tremendous scientific interest because of the unique phenomena therein. Especially important is the epitaxial growth of films subjected to substrate-induced misfit strain. We show here that in contrast to conventional misfit-controlled epitaxy, chemical bonds determine the crystal stability and strain in epitaxial films of sodium niobate on different cubic substrates. Strain relaxation in sodium niobate is independent of misfit magnitude and proceeds through perovskite-specific tilting of oxygen octahedra in addition to common defect formation. The observed structural relaxation evidences a major role of a large internal strain that originates from chemical bonds in the perovskite cell. The effect of chemical bonds on film strain is anticipated to also control the epitaxy of other perovskite oxides and related compounds.
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Affiliation(s)
- L Yao
- NanoSpin, Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076 Aalto, Finland
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10
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Jo C, Hwang J, Lim WG, Lim J, Hur K, Lee J. Multiscale Phase Separations for Hierarchically Ordered Macro/Mesostructured Metal Oxides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1703829. [PMID: 29271508 DOI: 10.1002/adma.201703829] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/20/2017] [Indexed: 05/27/2023]
Abstract
Porous architectures play an important role in various applications of inorganic materials. Several attempts to develop mesoporous materials with controlled macrostructures have been reported, but they usually require complicated multiple-step procedures, which limits their versatility and suitability for mass production. Here, a simple approach for controlling the macrostructures of mesoporous materials, without templates for the macropores, is reported. The controlled solvent evaporation induces both macrophase separation via spinodal decomposition and mesophase separation via block copolymer self-assembly, leading to the formation of hierarchically porous metal oxides with periodic macro/mesostructures. In addition, using this method, macrostructures of mesoporous metal oxides are controlled into spheres and mesoporous powders containing isolated macropores. Nanocomputed tomography, focused ion beam milling, and electron microscopy confirm well-defined macrostructures containing mesopores. Among the various porous structures, hierarchically macro/mesoporous metal oxide is employed as an anode material in lithium-ion batteries. The present approach could provide a broad and easily accessible platform for the manufacturing of mesoporous inorganic materials with different macrostructures.
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Affiliation(s)
- Changshin Jo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Jongkook Hwang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Won-Gwang Lim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Jun Lim
- Beamline Division, Pohang Light Source, 80 Jigok-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
| | - Kahyun Hur
- Center for Computational Science, Korea Institute of Science and Technology (KIST), 5 Hwarang-Ro, Seongbuk-Gu, Seoul, 02792, Republic of Korea
| | - Jinwoo Lee
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Gyeongbuk, Republic of Korea
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11
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Zhang L, Wu M, Chen X, Wu X, Spiecker E, Song Y, Pan W, Li Y, Yue L, Shao J, Wang S. Nanoscale distribution of Bi atoms in InP 1-xBi x. Sci Rep 2017; 7:12278. [PMID: 28947809 PMCID: PMC5612989 DOI: 10.1038/s41598-017-12075-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 09/04/2017] [Indexed: 11/09/2022] Open
Abstract
The nanoscale distribution of Bi in InPBi is determined by atom probe tomography and transmission electron microscopy. The distribution of Bi atoms is not uniform both along the growth direction and within the film plane. A statistically high Bi-content region is observed at the bottom of the InPBi layer close to the InPBi/InP interface. Bi-rich V-shaped walls on the (-111) and (1-11) planes close to the InPBi/InP interface and quasi-periodic Bi-rich nanowalls in the (1-10) plane with a periodicity of about 100 nm are observed. A growth model is proposed to explain the formation of these unique Bi-related nanoscale features. These features can significantly affect the deep levels of the InPBi epilayer. The regions in the InPBi layer with or without these Bi-related nanostructures exhibit different optical properties.
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Affiliation(s)
- Liyao Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Mingjian Wu
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science, Universität Erlangen-Nürnberg, Cauerstraße 6, D-91058, Erlangen, Germany
- Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10117, Berlin, Germany
| | - Xiren Chen
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, CAS, 500 Yutian Road, Shanghai, 200083, China
| | - Xiaoyan Wu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Erdmann Spiecker
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science, Universität Erlangen-Nürnberg, Cauerstraße 6, D-91058, Erlangen, Germany
| | - Yuxin Song
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Wenwu Pan
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Yaoyao Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Li Yue
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China
| | - Jun Shao
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, CAS, 500 Yutian Road, Shanghai, 200083, China
| | - Shumin Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road, Shanghai, 200050, China.
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, 41296, Gothenburg, Sweden.
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12
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Chen Z, Wang X, Qi Y, Yang S, Soares JANT, Apgar BA, Gao R, Xu R, Lee Y, Zhang X, Yao J, Martin LW. Self-Assembled, Nanostructured, Tunable Metamaterials via Spinodal Decomposition. ACS NANO 2016; 10:10237-10244. [PMID: 27934083 DOI: 10.1021/acsnano.6b05736] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Self-assembly via nanoscale phase separation offers an elegant route to fabricate nanocomposites with physical properties unattainable in single-component systems. One important class of nanocomposites are optical metamaterials which exhibit exotic properties and lead to opportunities for agile control of light propagation. Such metamaterials are typically fabricated via expensive and hard-to-scale top-down processes requiring precise integration of dissimilar materials. In turn, there is a need for alternative, more efficient routes to fabricate large-scale metamaterials for practical applications with deep-subwavelength resolution. Here, we demonstrate a bottom-up approach to fabricate scalable nanostructured metamaterials via spinodal decomposition. To demonstrate the potential of such an approach, we leverage the innate spinodal decomposition of the VO2-TiO2 system, the metal-to-insulator transition in VO2, and thin-film epitaxy, to produce self-organized nanostructures with coherent interfaces and a structural unit cell down to 15 nm (tunable between horizontally and vertically aligned lamellae) wherein the iso-frequency surface is temperature-tunable from elliptic to hyperbolic dispersion producing metamaterial behavior. These results provide an efficient route for the fabrication of nanostructured metamaterials and other nanocomposites for desired functionalities.
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Affiliation(s)
- Zuhuang Chen
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Xi Wang
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
| | - Yajun Qi
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Key Laboratory of Green Preparation and Application for Materials, Ministry of Education, Department of Materials Science and Engineering, Hubei University , Wuhan 430062, P.R. China
| | - Sui Yang
- Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
- NSF Nanoscale Science and Engineering Center (NSEC), University of California, Berkeley , Berkeley, California 94720, United States
| | - Julio A N T Soares
- Materials Research Laboratory, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Brent A Apgar
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
| | - Ran Gao
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
| | - Ruijuan Xu
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
| | - Yeonbae Lee
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
| | - Xiang Zhang
- Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
- NSF Nanoscale Science and Engineering Center (NSEC), University of California, Berkeley , Berkeley, California 94720, United States
| | - Jie Yao
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Lane W Martin
- Department of Materials Science and Engineering, University of California , Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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13
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Danaie M, Kepaptsoglou D, Ramasse QM, Ophus C, Whittle KR, Lawson SM, Pedrazzini S, Young NP, Bagot PAJ, Edmondson PD. Characterization of Ordering in A-Site Deficient Perovskite Ca1–xLa2x/3TiO3 Using STEM/EELS. Inorg Chem 2016; 55:9937-9948. [DOI: 10.1021/acs.inorgchem.6b02087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohsen Danaie
- University of Oxford, Department of Materials, Parks Road, Oxford OX1 3PH, U.K
| | - Demie Kepaptsoglou
- SuperSTEM
Laboratory, SciTech Daresbury Campus, Keckwick Ln, Warrington WA4 4AD, U.K
| | - Quentin M. Ramasse
- SuperSTEM
Laboratory, SciTech Daresbury Campus, Keckwick Ln, Warrington WA4 4AD, U.K
| | - Colin Ophus
- National
Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, 67 Cyclotron Road, Berkeley, California 94720, United States
| | - Karl R. Whittle
- University of Sheffield, Department of Materials Science & Engineering, Immobilisation Science Laboratory, Mappin Street, Sheffield S1 3JD, U.K
- School
of Engineering, University of Liverpool, Brownlow Hill, Liverpool L69 3GH, U.K
| | - Sebastian M. Lawson
- University of Sheffield, Department of Materials Science & Engineering, Immobilisation Science Laboratory, Mappin Street, Sheffield S1 3JD, U.K
| | - Stella Pedrazzini
- University of Oxford, Department of Materials, Parks Road, Oxford OX1 3PH, U.K
| | - Neil P. Young
- University of Oxford, Department of Materials, Parks Road, Oxford OX1 3PH, U.K
| | - Paul A. J. Bagot
- University of Oxford, Department of Materials, Parks Road, Oxford OX1 3PH, U.K
| | - Philip D. Edmondson
- Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
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14
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Zhu Y, Withers RL, Bourgeois L, Dwyer C, Etheridge J. Direct mapping of Li-enabled octahedral tilt ordering and associated strain in nanostructured perovskites. NATURE MATERIALS 2015; 14:1142-1149. [PMID: 26322717 DOI: 10.1038/nmat4390] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 07/06/2015] [Indexed: 06/04/2023]
Abstract
Self-assembled nanostructures with periodic phase separation hold great promise for creating two- and three-dimensional superlattices with extraordinary physical properties. Understanding the mechanism(s) driving the formation of such superlattices demands an understanding of their underlying atomic structure. However, the nanoscale structural fluctuations intrinsic to these superlattices pose a new challenge for structure determination methods. Here we develop an optimized atomic-level imaging condition to measure TiO6 octahedral tilt angles, unit-cell-by-unit-cell, in perovskite-based Li(0.5-3x)Nd(0.5+x)TiO3, and thereby determine the mathematical formula governing this nanoscale superstructure. We obtain a direct real-space correlation of the octahedral tilt modulation with the superstructure geometry and lattice-parameter variations. This reveals a composition-dependent, self-ordered octahedral superlattice. Amazingly, we observe a reversible annihilation/reconstruction of the octahedral superlattice correlated with the delithiation/lithiation process in this promising Li-ion conductor. This approach to quantify local octahedral tilt and correlate it with strain can be applied to characterize complex octahedral behaviours in other advanced oxide systems.
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Affiliation(s)
- Ye Zhu
- Department of Materials Science and Engineering, Monash University, Victoria 3800, Australia
| | - Ray L Withers
- Research School of Chemistry, College of Physical and Mathematical Sciences, The Australian National University, Canberra, Australian Capital Territory 0200, Australia
| | - Laure Bourgeois
- Department of Materials Science and Engineering, Monash University, Victoria 3800, Australia
- Monash Centre for Electron Microscopy, Monash University, Victoria 3800, Australia
| | - Christian Dwyer
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - Joanne Etheridge
- Department of Materials Science and Engineering, Monash University, Victoria 3800, Australia
- Monash Centre for Electron Microscopy, Monash University, Victoria 3800, Australia
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15
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Lu F, Wang X, Pan Z, Pan F, Chai S, Liang C, Wang Q, Wang J, Fang L, Kuang X, Jing X. Nanometer-scale separation of d(10) Zn(2+)-layers and twin-shift competition in Ba8ZnNb6O24-based 8-layered hexagonal perovskites. Dalton Trans 2015; 44:13173-85. [PMID: 26110444 DOI: 10.1039/c5dt00859j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 8-layered shifted hexagonal perovskite compound Ba8ZnNb6O24 was isolated via controlling the ZnO volatilization, which features long-range B-cation ordering with nanometer-scale separation by ∼1.9 nm of octahedral d(10) cationic (Zn(2+)) layers within the purely corner-sharing octahedral d(0) cationic (Nb(5+)) host. The long-range ordering of the B-site vacancy and out-of-center distortion of the highly-charged d(0) Nb(5+) that is assisted by the second-order Jahn-Teller effect contribute to this unusual B-cation ordering in Ba8ZnNb6O24. A small amount (∼15%) of d(10) Sb(5+) substitution for Nb(5+) in Ba8ZnNb6-xSbxO24 dramatically transformed the shifted structure to a twinned structure, in contrast with the Ba8ZnNb6-xTaxO24 case requiring 50% d(0) Ta(5+) substitution for Nb(5+) for such a shift-to-twin transformation. Multiple factors including B-cationic sizes, electrostatic repulsion forces, long-range ordering of B-site vacancies, and bonding preferences arising from a covalent contribution to the B-O bonding that includes out-of-center octahedral distortion and the B-O-B bonding angle could subtly contribute to the twin-shift phase competition of B-site deficient 8-layered hexagonal perovskites Ba8B7O24. The ceramics of new shifted Ba8ZnNb6O24 and twinned Ba8ZnNb5.1Sb0.9O24 compounds exhibited good microwave dielectric properties (εr ∼ 35, Qf ∼ 36 200-43 400 GHz and τf ∼ 38-44 ppm/°C).
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Affiliation(s)
- Fengqi Lu
- Guangxi Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Nonferrous Metal and Featured Materials, Guangxi Universities Key Laboratory of Non-ferrous Metal Oxide Electronic Functional Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, P. R. China.
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16
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Lee S, Damodaran AR, Gorai P, Oh N, Moyer JA, Kwon JH, Ferdous N, Shah A, Chen Z, Breckenfeld E, Mangalam RVK, Braun PV, Schiffer P, Shim M, Zuo JM, Ertekin E, Martin LW. A novel, layered phase in Ti-rich SrTiO3 epitaxial thin films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:861-868. [PMID: 25523179 DOI: 10.1002/adma.201403602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/20/2014] [Indexed: 06/04/2023]
Abstract
Sr2Ti7O14, a new phase, is synthesized by leveraging the innate chemical and thermo-dynamic instabilities in the SrTiO3-TiO2 system and non-equilibrium growth techniques. The chemical composition, epitaxial relationships, and orientation play roles in the formation of this novel layered phase, which, in turn, possesses unusual charge ordering, anti-ferromagnetic ordering, and low, glass-like thermal conductivity.
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Affiliation(s)
- Sungki Lee
- Department of Materials Science and Engineering, University of California Berkeley, Berkeley, California, 94720, USA
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17
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Davies PK, Guiton BS. Reply to 'Nanoscale phase separation in perovskites revisited'. NATURE MATERIALS 2014; 13:217-218. [PMID: 24553640 DOI: 10.1038/nmat3866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Peter K Davies
- Department of Materials Science and Engineering, University of Pennsylvania, USA
| | - Beth S Guiton
- 1] Department of Chemistry, University of Kentucky, USA [2] Materials Science and Technology Division, Oak Ridge National Laboratory, USA
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18
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Erni R, Abakumov AM, Rossell MD, Batuk D, Tsirlin AA, Nénert G, Van Tendeloo G. Nanoscale phase separation in perovskites revisited. NATURE MATERIALS 2014; 13:216-217. [PMID: 24553639 DOI: 10.1038/nmat3865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Rolf Erni
- Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | | | - Marta D Rossell
- Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Dmitry Batuk
- EMAT, University of Antwerp, B-2020 Antwerp, Belgium
| | - Alexander A Tsirlin
- National Institute of Chemical Physics and Biophysics, 12618 Tallinn, Estonia
| | - Gwilherm Nénert
- Institut Laue Langevin, 6 rue Jules Horowitz, 38042 Grenoble, France
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19
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Ohba T, Ohyama Y, Kanoh H. A new route to nanoscale ceramics in asymmetric reaction fields of carbon nanospaces. RSC Adv 2014. [DOI: 10.1039/c4ra05311g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Retuerto M, Li MR, Ignatov A, Croft M, Ramanujachary KV, Chi S, Hodges JP, Dachraoui W, Hadermann J, Tran TT, Halasyamani PS, Grams CP, Hemberger J, Greenblatt M. Polar and magnetic layered A-site and rock salt B-site-ordered NaLnFeWO6 (Ln = La, Nd) perovskites. Inorg Chem 2013; 52:12482-91. [PMID: 24138134 DOI: 10.1021/ic401491y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have expanded the double perovskite family of materials with the unusual combination of layered order in the A sublattice and rock salt order over the B sublattice to compounds NaLaFeWO6 and NaNdFeWO6. The materials have been synthesized and studied by powder X-ray diffraction, neutron diffraction, electron diffraction, magnetic measurements, X-ray absorption spectroscopy, dielectric measurements, and second harmonic generation. At room temperature, the crystal structures of both compounds can be defined in the noncentrosymmetric monoclinic P2(1) space group resulting from the combination of ordering both in the A and B sublattices, the distortion of the cell due to tilting of the octahedra, and the displacement of certain cations. The magnetic studies show that both compounds are ordered antiferromagnetically below T(N) ≈ 25 K for NaLaFeWO6 and at ∼21 K for NaNdFeWO6. The magnetic structure of NaNdFeWO6 has been solved with a propagation vector k = ((1/2) 0 (1/2)) as an antiferromagnetic arrangement of Fe and Nd moments. Although the samples are potential multiferroics, the dielectric measurements do not show a ferroelectric response.
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Affiliation(s)
- M Retuerto
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , 610 Taylor Road, Piscataway, New Jersey 08854, United States
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21
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BiNb3O9, a metastable perovskite phase with Bi/vacancy ordering: Crystal structure and dielectric properties. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.01.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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González S, Perez-Mato JM, Elcoro L, García A, Withers RL, Bourgeois L. Compositional uniformity, domain patterning and the mechanism underlying nano-chessboard arrays. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:495301. [PMID: 23137958 DOI: 10.1088/0953-8984/24/49/495301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We propose that systems exhibiting compositional patterning at the nanoscale, so far assumed to be due to some kind of ordered phase segregation, can be understood instead in terms of coherent, single phase ordering of minority motifs, caused by some constrained drive for uniformity. The essential features of this type of arrangement can be reproduced using a superspace construction typical of uniformity-driven orderings, which only requires the knowledge of the modulation vectors observed in the diffraction patterns. The idea is discussed in terms of a simple two-dimensional lattice-gas model that simulates a binary system in which the dilution of the minority component is favoured. This simple model already exhibits a hierarchy of arrangements similar to the experimentally observed nano-chessboard and nano-diamond patterns, which are described as occupational modulated structures with two independent modulation wavevectors and simple step-like occupation modulation functions.
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Affiliation(s)
- Santiago González
- Departamento de Física de la Materia Condensada, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Apartado 644, E-48080 Bilbao, Spain
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23
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Lu Y, Wang C, Gao Y, Shi R, Liu X, Wang Y. Microstructure map for self-organized phase separation during film deposition. PHYSICAL REVIEW LETTERS 2012; 109:086101. [PMID: 23002760 DOI: 10.1103/physrevlett.109.086101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 06/04/2012] [Indexed: 06/01/2023]
Abstract
Drastically different two-phase microstructures have been reported for alloy epitaxial films, including self-organized nanoscale concentration modulations of vertical and lateral stripes. To understand the disparity of these microstructures, we study their formation mechanisms via spinodal decomposition during film deposition with the aid of computer simulations. Based on the simulation results, a microstructure map is established that describes relationships among the morphology of self-organized two-phase microstructure, initial alloy composition, and deposition rate relative to the phase separation kinetics in the film. Depending on the deposition rate relative to the kinetics of spinodal decomposition in the film, both laterally and vertically modulated microstructures could be obtained.
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Affiliation(s)
- Yong Lu
- Department of Materials Science and Engineering, College of Materials, and Research Center of Materials Design and Applications, Xiamen University, Xiamen 361005, People's Republic of China
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24
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Licurse MW, Borisevich AY, Davies PK. Nanoscale modulations in (KLa)(CaW)O6 and (NaLa)(CaW)O6. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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García-Martín S, King G, Nénert G, Ritter C, Woodward PM. The Incommensurately Modulated Structures of the Perovskites NaCeMnWO6 and NaPrMnWO6. Inorg Chem 2012; 51:4007-14. [DOI: 10.1021/ic202071n] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susana García-Martín
- Departamento de Química Inorgánica, Facultad de Ciencias
Químicas, Universidad Complutense, Madrid 28040, Spain
| | - Graham King
- Lujan Neutron Scattering Center, Los Alamos National Laboratory, MS H805, Los Alamos, New Mexico, 87545,
United States
| | - Gwilherm Nénert
- Institut Laue-Langevin, 6 rue Jules Horowitz, 38042
Grenoble Cedex 9, France
| | - C. Ritter
- Institut Laue-Langevin, 6 rue Jules Horowitz, 38042
Grenoble Cedex 9, France
| | - Patrick M. Woodward
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185, United States
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26
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Kauffmann-Weiss S, Gruner ME, Backen A, Schultz L, Entel P, Fähler S. Magnetic nanostructures by adaptive twinning in strained epitaxial films. PHYSICAL REVIEW LETTERS 2011; 107:206105. [PMID: 22181750 DOI: 10.1103/physrevlett.107.206105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Indexed: 05/31/2023]
Abstract
We exploit the intrinsic structural instability of the Fe(70)Pd(30) magnetic shape memory alloy to obtain functional epitaxial films exhibiting a self-organized nanostructure. We demonstrate that coherent epitaxial straining by 54% is possible. The combination of thin film experiments and large-scale first-principles calculations enables us to establish a lattice relaxation mechanism, which is not expected for stable materials. We identify a low twin boundary energy compared to a high elastic energy as key prerequisite for the adaptive nanotwinning. Our approach is versatile as it allows to control both, nanostructure and intrinsic properties for ferromagnetic, ferroelastic, and ferroelectric materials.
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27
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West DV, Davies PK. Triclinic and monoclinic structures of SrLaCuNbO6and SrLaCuTaO6double perovskites. J Appl Crystallogr 2011. [DOI: 10.1107/s0021889811012131] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SrLaCuNbO6and SrLaCuTaO6are Jahn–Teller distorted double perovskites with completeB-site ordering. The crystal structure of SrLaCuTaO6has been solved by refinement of neutron powder diffraction data at 323 (triclinic), 573 (monoclinic) and 923 K (body-centered monoclinic). Synchrotron X-ray and electron diffraction reveal local-scale features similar to those seen in ferroelectric perovskites, and also inA-site ordered perovskites exhibiting nanoscale periodicities. The crystal structure of SrLaCuNbO6was solved by refinement of synchrotron X-ray powder diffraction data at 673 and 1273 K. Because of the high resolution of the synchrotron, adjustments to these structure models were necessary in order to account for profile irregularities resulting from the local-scale behavior.
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28
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Okumura T, Ina T, Orikasa Y, Arai H, Uchimoto Y, Ogumi Z. Effect of average and local structures on lithium ion conductivity in La2/3−xLi3xTiO3. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04372a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Yan Y, Wang R, Qiu X, Wei Z. Hexagonal Superlattice of Chiral Conducting Polymers Self-Assembled by Mimicking β-Sheet Proteins with Anisotropic Electrical Transport. J Am Chem Soc 2010; 132:12006-12. [DOI: 10.1021/ja1036447] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Yan
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Rui Wang
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiaohui Qiu
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Zhixiang Wei
- National Center for Nanoscience and Technology, Beijing 100190, P. R. China, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China
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30
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Torres-Pardo A, Krumeich F, González-Calbet JM, García-González E. Transmission Electron Microscopy Evidence of Spontaneous B-Cation Layered Distribution in NaNb1−xTaxO3. J Am Chem Soc 2010; 132:9843-9. [DOI: 10.1021/ja1031858] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Almudena Torres-Pardo
- Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Laboratory of Inorganic Chemistry, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Frank Krumeich
- Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Laboratory of Inorganic Chemistry, ETH Zurich, CH-8093 Zurich, Switzerland
| | - José M. González-Calbet
- Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Laboratory of Inorganic Chemistry, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Ester García-González
- Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Laboratory of Inorganic Chemistry, ETH Zurich, CH-8093 Zurich, Switzerland
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31
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Pálová L, Chandra P, Rabe KM. Magnetostructural effect in the multiferroic BiFeO3-BiMnO3 checkerboard from first principles. PHYSICAL REVIEW LETTERS 2010; 104:037202. [PMID: 20366677 DOI: 10.1103/physrevlett.104.037202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Indexed: 05/29/2023]
Abstract
Using first-principles calculations, we identify a magnetostructural effect in the BiFeO3-BiMnO3 nanocheckerboard that is not to be found in either the bulk parent compound or in BiFeO3-BiMnO3 superlattices with (001)-oriented Fe and Mn layers. The key role of the cation arrangement is explained by a simple model of the exchange coupling between cation spins, leading to magnetic frustration in the checkerboard. We also demonstrate that the atomic-scale checkerboard has a multiferroic ground state with the desired properties of each constituent material: polar and ferrimagnetic due to BiFeO3 and BiMnO3, respectively.
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Affiliation(s)
- L Pálová
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
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32
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33
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Mohn CE, Stein MJ, Allan NL. Oxide and halide nanoclusters on ionic substrates: heterofilm formation and lattice mismatch. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01864c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Ni Y, Rao W, Khachaturyan AG. Pseudospinodal mode of decomposition in films and formation of chessboard-like nanostructure. NANO LETTERS 2009; 9:3275-3281. [PMID: 19639986 DOI: 10.1021/nl901551j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A new decomposition mode, a coherent pseudospinodal decomposition under geometrically confined conditions, is discovered. This mode is associated with a coupling of the decomposition with the displacive crystal lattice rearrangement and results in a gradual separation of compositions of two product phases. We consider a particular case of decomposition in an epitaxial thin film. The 3D phase field microelasticity modeling demonstrates that the confined pseudospinodal decomposition dramatically affects the thermodynamics, kinetics and morphology of the system producing a vertically aligned and highly correlated regular chessboard pattern of two product phases. The study reveals the physical origin of the chessboard structure. The computer modeling predicts its geometry in striking agreement with the existing observations. The modeling shows that the transformation develops through a so-called tweed precursor state observed in many martensitic systems.
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Affiliation(s)
- Yong Ni
- Department of Materials Science & Engineering, Rutgers University, Piscataway, New Jersey 08854, USA
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35
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Ni Y, Khachaturyan AG. From chessboard tweed to chessboard nanowire structure during pseudospinodal decomposition. NATURE MATERIALS 2009; 8:410-414. [PMID: 19377463 DOI: 10.1038/nmat2431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2008] [Accepted: 03/20/2009] [Indexed: 05/27/2023]
Abstract
Microstructure evolution in complex nonlinear systems is of great interest from both scientific and engineering viewpoints. Here, we consider an important case of such an evolution, a coherent decomposition of a homogeneous parent phase involving the symmetry-lifting crystal lattice rearrangement of the product phase. It is shown that under certain conditions the transformation develops as a pseudospinodal decomposition, which is defined as a transformation with continuous changes of the compositions of both decomposed phases towards their equilibrium values. The pseudospinodal decomposition starts by the formation of a nanodomain precursor state with a so-called tweed structure. The three-dimensional modelling demonstrates that this tweed structure has an underlying chessboard feature, and this arrangement is a template for the further microstructure development that eventually produces a coherent two-phase chessboard nanowire pattern. The proposed theory and modelling describe the mechanism of the pseudospinodal decomposition and predict all observed three-dimensional features of the chessboard structure.
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Affiliation(s)
- Yong Ni
- Department of Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, USA
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36
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Mohn CE, Allan NL, Harding JH. Ultrathin oxide films and heterojunctions: CaO layers on BaO and SrO. Phys Chem Chem Phys 2009; 11:3217-25. [DOI: 10.1039/b822588e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Lu J, Yang H, Li Z, Ma C, Shi H, Zeng L, Li J. Phase separation, cation ordering and nano-structural complexities in Nd2/3−xLi3xTiO3 with x=0.14. J SOLID STATE CHEM 2008. [DOI: 10.1016/j.jssc.2008.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Guiton BS, Davies PK. Spontaneous Compositional Nanopatterning in Li-Containing Perovskite Oxides. J Am Chem Soc 2008; 130:17168-73. [DOI: 10.1021/ja806130u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Beth S. Guiton
- Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, Pennsylvania 19104
| | - Peter K. Davies
- Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, Pennsylvania 19104
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39
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García-Martín S, Urones-Garrote E, Knapp MC, King G, Woodward PM. Transmission Electron Microscopy Studies of NaLaMgWO6: Spontaneous Formation of Compositionally Modulated Stripes. J Am Chem Soc 2008; 130:15028-37. [DOI: 10.1021/ja802511d] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susana García-Martín
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid-28040, Spain, and Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185
| | - Esteban Urones-Garrote
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid-28040, Spain, and Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185
| | - Meghan C. Knapp
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid-28040, Spain, and Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185
| | - Graham King
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid-28040, Spain, and Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185
| | - Patrick M. Woodward
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, Madrid-28040, Spain, and Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1185
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Castillo-Martínez E, Arévalo-López AM, Ruiz-Bustos R, Alario-Franco MA. Increasing the Structural Complexity of Chromium(IV) Oxides by High-Pressure and High-Temperature Reactions of CrO2. Inorg Chem 2008; 47:8526-42. [DOI: 10.1021/ic801015b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- E. Castillo-Martínez
- Departamento de Química Inorgánica I, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - A. M. Arévalo-López
- Departamento de Química Inorgánica I, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - R. Ruiz-Bustos
- Departamento de Química Inorgánica I, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M. A. Alario-Franco
- Departamento de Química Inorgánica I, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Park S, Horibe Y, Asada T, Wielunski LS, Lee N, Bonanno PL, O'Malley SM, Sirenko AA, Kazimirov A, Tanimura M, Gustafsson T, Cheong SW. Highly aligned epitaxial nanorods with a checkerboard pattern in oxide films. NANO LETTERS 2008; 8:720-724. [PMID: 18269259 DOI: 10.1021/nl072848s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
One of the central challenges of nanoscience is fabrication of nanoscale structures with well-controlled architectures using planar thin-film technology. Herein, we report that ordered nanocheckerboards in ZnMnGaO4 films were grown epitaxially on single-crystal MgO substrates by utilizing a solid-state method of the phase separation-induced self-assembly. The films consist of two types of chemically distinct and regularly spaced nanorods with mutually coherent interfaces, approximately 4 x 4 x 750 nm3 in size and perfectly aligned along the film growth direction. Surprisingly, a significant in-plane strain, more than 2%, from the substrate is globally maintained over the entire film thickness of about 820 nm. The strain energy from Jahn-Teller distortions and the film-substrate lattice mismatch induce the coherent three-dimensional (3D) self-assembled nanostructure, relieving the volume strain energy while suppressing the formation of dislocations.
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Affiliation(s)
- S Park
- Rutgers Center for Emergent Materials, Rutgers University, Piscataway, New Jersey 08854, USA.
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Cheong SW. Transition metal oxides: the exciting world of orbitals. NATURE MATERIALS 2007; 6:927-928. [PMID: 18059299 DOI: 10.1038/nmat2069] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Woodward PM. Complex perovskites: a chessboard at the nanoscale. NATURE MATERIALS 2007; 6:549-51. [PMID: 17667975 DOI: 10.1038/nmat1970] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
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