1
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Adams C, Bonner CDJ, Pathiraja G, Obare SO. Room-Temperature Synthesis of Thioether-Stabilized Ruthenium Nanocubes and Their Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2500-2508. [PMID: 36724795 PMCID: PMC9948292 DOI: 10.1021/acs.langmuir.2c02645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Controlling the nucleation and growth processes for nanoparticle synthesis allows the development of well-defined structures that offer unique chemical and physical properties. Here, we report a wet chemical reduction method for synthesizing ruthenium nanocubes (Ru NCs) that display plasmonic properties at room temperature (RT). The growth of the particles to form nanostructured cubes was established by varying the carbon chain length of the thioether stabilizing ligands and the reaction time to produce stable and controlled growth. In this study, we found that the longer the thioether chain length, the less isotropic the shape of the particles. Short chain lengths of thioethers (ethyl sulfide and butyl sulfide) produced spherical nanoparticles, whereas longer chain lengths (hexyl sulfide and octyl sulfide) produced cubic nanoparticles. In addition, parameters such as the ligand to precursor ratio also played an important role in the homogeneity of the nanocubes. The Ru NCs were characterized by UV-visible absorbance spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), which supported a face-centered cubic (fcc) structure. Moreover, to demonstrate catalytic efficiency, we studied their ability to reduce benzaldehyde to benzyl alcohol, and the Ru NCs demonstrated an overall 78% efficiency at room temperature.
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Affiliation(s)
- Clara
P. Adams
- Central
Piedmont Community College, 1201 Elizabeth Avenue, Charlotte, North Carolina28204, United States
- Department
of Chemistry, Western Michigan University, 1903 W. Michigan Ave.Kalamazoo, Michigan49008, United States
| | - Chartanay D. J. Bonner
- Department
of Chemistry, Western Michigan University, 1903 W. Michigan Ave.Kalamazoo, Michigan49008, United States
- Department
of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, 2907 East Gate City Boulevard, Greensboro, North Carolina27401, United States
| | - Gayani Pathiraja
- Department
of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, 2907 East Gate City Boulevard, Greensboro, North Carolina27401, United States
| | - Sherine O. Obare
- Department
of Chemistry, Western Michigan University, 1903 W. Michigan Ave.Kalamazoo, Michigan49008, United States
- Department
of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, 2907 East Gate City Boulevard, Greensboro, North Carolina27401, United States
- Department
of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, 2907 East Gate City Boulevard, Greensboro, North Carolina27401, United States
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2
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Zhang C, He X, Liu C, Li Z, Lu K, Zhang S, Feng S, Wang X, Peng Y, Long Y, Yu R, Wang L, Prakapenka V, Chariton S, Li Q, Liu H, Chen C, Jin C. Record high T c element superconductivity achieved in titanium. Nat Commun 2022; 13:5411. [PMID: 36109496 PMCID: PMC9478155 DOI: 10.1038/s41467-022-33077-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/29/2022] [Indexed: 11/08/2022] Open
Abstract
It is challenging to search for high Tc superconductivity (SC) in transition metal elements wherein d electrons are usually not favored by conventional BCS theory. Here we report experimental discovery of surprising SC up to 310 GPa with Tc above 20 K in wide pressure range from 108 GPa to 240 GPa in titanium. The maximum Tconset above 26.2 K and zero resistance Tczero of 21 K are record high values hitherto achieved among element superconductors. The Hc2(0) is estimated to be ∼32 Tesla with coherence length 32 Å. The results show strong s-d transfer and d band dominance, indicating correlation driven contributions to high Tc SC in dense titanium. This finding is in sharp contrast to the theoretical predications based on pristine electron-phonon coupling scenario. The study opens a fresh promising avenue for rational design and discovery of high Tc superconductors among simple materials via pressure tuned unconventional mechanism.
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Affiliation(s)
- Changling Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
| | - Xin He
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
- Songshan Lake Materials Laboratory, 523808, Dongguan, China
| | - Chang Liu
- International Center for Computational Method and Software, College of Physics, Jilin University, 130012, Changchun, China
| | - Zhiwen Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
| | - Ke Lu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
| | - Sijia Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
| | - Shaomin Feng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
| | - Xiancheng Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China.
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China.
| | - Yi Peng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
| | - Youwen Long
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
- Songshan Lake Materials Laboratory, 523808, Dongguan, China
| | - Richeng Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China
| | - Luhong Wang
- Shanghai Advanced Research in Physical Sciences, 201203, Shanghai, China
| | - Vitali Prakapenka
- Center for Advanced Radiations Sources, University of Chicago, Chicago, IL, 60637, USA
| | - Stella Chariton
- Center for Advanced Radiations Sources, University of Chicago, Chicago, IL, 60637, USA
| | - Quan Li
- International Center for Computational Method and Software, College of Physics, Jilin University, 130012, Changchun, China
| | - Haozhe Liu
- Center for High Pressure Science & Technology Advanced Research, 100094, Beijing, China
| | - Changfeng Chen
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, 89154, USA.
| | - Changqing Jin
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China.
- School of Physical Sciences, University of Chinese Academy of Sciences, 100190, Beijing, China.
- Songshan Lake Materials Laboratory, 523808, Dongguan, China.
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3
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Todai M, Fukunaga K, Nakano T. Athermal ω Phase and Lattice Modulation in Binary Zr-Nb Alloys. MATERIALS 2022; 15:ma15062318. [PMID: 35329769 PMCID: PMC8949616 DOI: 10.3390/ma15062318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/02/2022] [Accepted: 03/15/2022] [Indexed: 12/10/2022]
Abstract
To further explore the potential of Zr-based alloys as a biomaterial that will not interfere with magnetic resonance imaging (MRI), the microstructural characteristics of Zr-xat.% Nb alloys (10 ≤ x ≤ 18), particularly the athermal ω phase and lattice modulation, were investigated by conducting electrical resistivity and magnetic susceptibility measurements and transmission electron microscopy observations. The 10 Nb alloy and 12 Nb alloys had a positive temperature coefficient of electrical resistivity. The athermal ω phase existed in 10 Nb and 12 Nb alloys at room temperature. Alternatively, the 14 Nb and 18 Nb alloys had an anomalous negative temperature coefficient of the resistivity. The selected area diffraction pattern of the 14 Nb alloy revealed the co-occurrence of ω phase diffraction and diffuse satellites. These diffuse satellites were represented by gβ + q when the zone axis was [001] or [113], but not [110]. These results imply that these diffuse satellites appeared because the transverse waves consistent with the propagation and displacement vectors were q = <ζ ζ¯ 0>* for the ζ~1/2 and <110> directions. It is possible that the resistivity anomaly was caused by the formation of the athermal ω phase and transverse wave. Moreover, control of the athermal ω-phase transformation and occurrence of lattice modulation led to reduced magnetic susceptibility, superior deformation properties, and a low Young’s modulus in the Zr-Nb alloys. Thus, Zr-Nb alloys are promising MRI-compatible metallic biomaterials.
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Affiliation(s)
- Mitsuharu Todai
- Department of Environmental Materials Engineering, National Institute of Technology, Niihama College, 7-1 Yagumo-cho, Niihama 792-8580, Ehime, Japan;
| | - Keisuke Fukunaga
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan;
| | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan;
- Correspondence: ; Tel.: +81-6-6879-7505
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4
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Huston LQ, Velisavljevic N, Smith JS, Gray GT, Sturtevant BT. Multi-phase equation of state of ultrapure hafnium to 120 GPa. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 34:055401. [PMID: 34706344 DOI: 10.1088/1361-648x/ac33dd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Hafnium (Hf) is an industrially important material due to its large neutron absorption cross-section and its high corrosion resistance. When subjected to high pressure, Hf phase transforms from its hexagonal close packed α-Hf phase to the hexagonal ω-Hf phase. Upon further compression, ω-Hf phase transforms to the body centered cubic β-Hf phase. In this study, the high pressure phase transformations of Hf are studied by compressing and decompressing a well-characterized Hf sample in diamond anvil cells up to 120 GPa while collecting x-ray diffraction data. The phase transformations of Hf were compared in both a He pressure transmitting medium (PTM) and no PTM over several experiments. It was found that the α-Hf to ω-Hf phase transition occurs at a higher pressure during compression and lower pressure during decompression with a helium (He) PTM compared to using no PTM. There was little difference in the ω-Hf to β-Hf phase transition pressure between the He PTM and no PTM. The equation of state was fit for all three phases of Hf and under both PTM and no-PTM.
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Affiliation(s)
- L Q Huston
- Shock and Detonation Physics, Los Alamos National Laboratory, Los Alamos, NM 87545, United States of America
| | - N Velisavljevic
- Shock and Detonation Physics, Los Alamos National Laboratory, Los Alamos, NM 87545, United States of America
| | - J S Smith
- High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, United States of America
| | - G T Gray
- Materials Science and Technology, Los Alamos National Laboratory, Los Alamos, NM 87545, United States of America
| | - B T Sturtevant
- Shock and Detonation Physics, Los Alamos National Laboratory, Los Alamos, NM 87545, United States of America
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5
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MacLeod SG, Errandonea D, Cox GA, Cynn H, Daisenberger D, Finnegan SE, McMahon MI, Munro KA, Popescu C, Storm CV. The phase diagram of Ti-6Al-4V at high-pressures and high-temperatures. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:154001. [PMID: 33498030 DOI: 10.1088/1361-648x/abdffa] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
We report results from a series of diamond-anvil-cell synchrotron x-ray diffraction and large-volume-press experiments, and calculations, to investigate the phase diagram of commercial polycrystalline high-strength Ti-6Al-4V alloy in pressure-temperature space. Up to ∼30 GPa and 886 K, Ti-6Al-4V is found to be stable in the hexagonal-close-packed, orαphase. The effect of temperature on the volume expansion and compressibility ofα-Ti-6Al-4V is modest. The martensiticα→ω(hexagonal) transition occurs at ∼30 GPa, with both phases coexisting until at ∼38-40 GPa the transition to theωphase is completed. Between 300 K and 844 K theα→ωtransition appears to be independent of temperature.ω-Ti-6Al-4V is stable to ∼91 GPa and 844 K, the highest combined pressure and temperature reached in these experiments. Pressure-volume-temperature equations-of-state for theαandωphases of Ti-6Al-4V are generated and found to be similar to pure Ti. A pronounced hysteresis is observed in theω-Ti-6Al-4V on decompression, with the hexagonal structure reverting back to theαphase at pressures below ∼9 GPa at room temperature, and at a higher pressure at elevated temperatures. Based on our data, we estimate the Ti-6Al-4Vα-β-ωtriple point to occur at ∼900 K and 30 GPa, in good agreement with our calculations.
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Affiliation(s)
- S G MacLeod
- AWE, Aldermaston, Reading, RG7 4PR, United Kingdom
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - D Errandonea
- Departmento de Física Aplicada-ICMUV, Universidad de Valencia, MALTA Consolider Team, Edificio de Investigación, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - G A Cox
- AWE, Aldermaston, Reading, RG7 4PR, United Kingdom
| | - H Cynn
- Lawrence Livermore National Laboratory, Livermore, California 94550, United States of America
| | - D Daisenberger
- Diamond Light Source Ltd., Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
| | - S E Finnegan
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - M I McMahon
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - K A Munro
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - C Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Vallès 08290, Barcelona, Spain
| | - C V Storm
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
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6
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Xie H, Yao Y, Feng X, Duan D, Song H, Zhang Z, Jiang S, Redfern SAT, Kresin VZ, Pickard CJ, Cui T. Hydrogen Pentagraphenelike Structure Stabilized by Hafnium: A High-Temperature Conventional Superconductor. PHYSICAL REVIEW LETTERS 2020; 125:217001. [PMID: 33275012 DOI: 10.1103/physrevlett.125.217001] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 07/07/2020] [Accepted: 09/21/2020] [Indexed: 05/25/2023]
Abstract
The recent discovery of H_{3}S and LaH_{10} superconductors with record high superconducting transition temperatures T_{c} at high pressure has fueled the search for room-temperature superconductivity in the compressed superhydrides. Here we introduce a new class of high T_{c} hydrides with a novel structure and unusual properties. We predict the existence of an unprecedented hexagonal HfH_{10}, with remarkably high value of T_{c} (around 213-234 K) at 250 GPa. As concerns the novel structure, the H ions in HfH_{10} are arranged in clusters to form a planar "pentagraphenelike" sublattice. The layered arrangement of these planar units is entirely different from the covalent sixfold cubic structure in H_{3}S and clathratelike structure in LaH_{10}. The Hf atom acts as a precompressor and electron donor to the hydrogen sublattice. This pentagraphenelike H_{10} structure is also found in ZrH_{10}, ScH_{10}, and LuH_{10} at high pressure, each material showing a high T_{c} ranging from 134 to 220 K. Our study of dense superhydrides with pentagraphenelike layered structures opens the door to the exploration of a new class of high T_{c} superconductors.
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Affiliation(s)
- Hui Xie
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yansun Yao
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Xiaolei Feng
- Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China
- Department of Earth Science, University of Cambridge, Downing Site, Cambridge CB2 3EQ, United Kingdom
| | - Defang Duan
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Hao Song
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Zihan Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Shuqing Jiang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- Synergetic Extreme Condition User Facility, College of Physics, Jilin University, Changchun, Jilin 130012, China
| | - Simon A T Redfern
- Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China
- Asian School of the Environment, Nanyang Technological University, Singapore 639798
| | - Vladimir Z Kresin
- Lawrence Berkeley Laboratory, University of California at Berkeley, Berkeley, California 94720, USA
| | - Chris J Pickard
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
- Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan
| | - Tian Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
- Institute of High Pressure Physics, School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
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7
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O'Bannon EF, Jenei Z, Cynn H, Lipp MJ, Jeffries JR. Contributed Review: Culet diameter and the achievable pressure of a diamond anvil cell: Implications for the upper pressure limit of a diamond anvil cell. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:111501. [PMID: 30501343 DOI: 10.1063/1.5049720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/14/2018] [Indexed: 06/09/2023]
Abstract
Recently, static pressures of more than 1.0 TPa have been reported, which raises the question: what is the maximum static pressure that can be achieved using diamond anvil cell techniques? Here we compile culet diameters, bevel diameters, bevel angles, and reported pressures from the literature. We fit these data and find an expression that describes the maximum pressure as a function of the culet diameter. An extrapolation of our fit reveals that a culet diameter of 1 μm should achieve a pressure of ∼1.8 TPa. Additionally, for pressure generation of ∼400 GPa with a single beveled diamond anvil, the most commonly reported parameters are a culet diameter of ∼20 μm, a bevel angle of 8.5°, and a bevel diameter to culet diameter ratio between 14 and 18. Our analysis shows that routinely generating pressures more than ∼300 GPa likely requires diamond anvil geometries that are fundamentally different from a beveled or double beveled anvil (e.g., toroidal or double stage anvils) and culet diameters that are ≤20 μm.
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Affiliation(s)
- Earl F O'Bannon
- Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - Zsolt Jenei
- Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - Hyunchae Cynn
- Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - Magnus J Lipp
- Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - Jason R Jeffries
- Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94551, USA
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8
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Kusada K, Kobayashi H, Yamamoto T, Matsumura S, Sumi N, Sato K, Nagaoka K, Kubota Y, Kitagawa H. Discovery of Face-Centered-Cubic Ruthenium Nanoparticles: Facile Size-Controlled Synthesis Using the Chemical Reduction Method. J Am Chem Soc 2013; 135:5493-6. [DOI: 10.1021/ja311261s] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kohei Kusada
- Division of Chemistry, Graduate
School of Science, Kyoto University, Kitashirakawa
Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate
School of Science, Kyoto University, Kitashirakawa
Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
| | - Tomokazu Yamamoto
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Department of Applied
Quantum
Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Department of Applied
Quantum
Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Naoya, Sumi
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Department of Applied Chemistry,
Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Katsutoshi Sato
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Department of Applied Chemistry,
Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Katsutoshi Nagaoka
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Department of Applied Chemistry,
Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Yoshiki Kubota
- Department of Physical Science,
Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate
School of Science, Kyoto University, Kitashirakawa
Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075,
Japan
- Institute for Integrated Cell-Material
Sciences (iCeMS), Kyoto University, Yoshida,
Sakyo-ku, Kyoto 606-8501, Japan
- INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-3095,
Japan
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9
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Jomard G, Magaud L, Pasturel A. Full-potential calculations using the generalized-gradient corrections: structural properties of Ti, Zr and Hf under compression. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13642819808206383] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- G. Jomard
- a Laboratoire de Physique Numérique, CNRS , 25 avenue des martyrs, BP 166, F-38042 , Grenoble Cedex 9 , France
- b Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS , 25 avenue des martyrs, BP 166, F-38042 , Grenoble Cedex 9 , France
| | - L. Magaud
- c Commissariat à l'Energie Atomique Grenoble, DRN, DTP, SECC , 17 avenue des martyrs, F-38054 , Grenoble Cedex 9 , France
| | - A. Pasturel
- a Laboratoire de Physique Numérique, CNRS , 25 avenue des martyrs, BP 166, F-38042 , Grenoble Cedex 9 , France
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10
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AMAL RAJ A. PRESSURE INDUCED STRUCTURAL PHASE TRANSITION AND SUPERCONDUCTIVITY IN TITANIUM METAL. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2009. [DOI: 10.1142/s0219633609004551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The electronic band structure, density of states, structural phase transition, and superconducting transition temperature under normal and high pressures are reported for titanium ( Ti ). The normal pressure band structure and density of states of hcp- Ti agree well with the previous calculations. The high pressure band structure exhibits significant deviations from the normal pressure band structure due to s, p → d transition. On the basis of band structure and total energy results obtained using full potential linear muffin-tin orbital method (FP LMTO), we predict a phase transformation sequence of α (hcp) → ω (hexagonal) → γ (distorted hcp) → β (bcc) in titanium under pressure. From our analysis we predict a δ (distorted bcc) phase which is not stable at any high pressures. According to the present calculation, at normal pressure, the superconducting transition of hcp- Ti occurs at 0.36 K which is in agreement with the experimental observation of 0.4 K. When the pressure is increased, it is predicted that, Tc increases at a rate of 3.123 K/Mbar in hcp- Ti . On further increase of pressure Tc begins to decrease at a rate of 1.464 K/Mbar.
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Affiliation(s)
- A. AMAL RAJ
- Department of Chemistry, James College of Engineering and Technology, NavalKadu, Tamil Nadu, India PIN 629852, India
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11
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McMahon MI, Nelmes RJ. High-pressure structures and phase transformations in elemental metals. Chem Soc Rev 2006; 35:943-63. [PMID: 17003900 DOI: 10.1039/b517777b] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
At ambient conditions the great majority of the metallic elements have simple crystal structures, such as face-centred or body-centred cubic, or hexagonal close-packed. However, when subjected to very high pressures, many of the same elements undergo phase transitions to low-symmetry and surprisingly complex structures, an increasing number of which are being found to be incommensurate. The present critical review describes the high-pressure behaviour of each of the group 1 to 16 metallic elements in detail, summarising previous work and giving the best present understanding of the structures and transitions at ambient temperature. The principal results and emerging systematics are then summarised and discussed.
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Affiliation(s)
- Malcolm I McMahon
- SUPA, School of Physics and Centre for Science at Extreme Conditions, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ, U.K
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Trinkle DR, Hennig RG, Srinivasan SG, Hatch DM, Jones MD, Stokes HT, Albers RC, Wilkins JW. New mechanism for the alpha to omega martensitic transformation in pure titanium. PHYSICAL REVIEW LETTERS 2003; 91:025701. [PMID: 12906490 DOI: 10.1103/physrevlett.91.025701] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2003] [Indexed: 05/24/2023]
Abstract
We propose a new direct mechanism for the pressure driven alpha-->omega martensitic transformation in pure titanium. A systematic algorithm enumerates all possible pathways whose energy barriers are evaluated. A new, homogeneous pathway emerges with a barrier at least 4 times lower than other pathways. The pathway is shown to be favorable in any nucleation model.
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Affiliation(s)
- D R Trinkle
- The Ohio State University, Columbus, Ohio 43210, USA
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Akahama Y, Kawamura H, Le Bihan T. New delta (distorted-bcc) titanium to 220 GPa. PHYSICAL REVIEW LETTERS 2001; 87:275503. [PMID: 11800892 DOI: 10.1103/physrevlett.87.275503] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2001] [Indexed: 05/23/2023]
Abstract
Structural phase transitions of a 3d transition element, titanium, have been investigated at pressures up to 220 GPa at room temperature using a monochromatic synchrotron x-ray diffraction technique. At 140 GPa, the hexagonal (omega) phase was transformed into an orthorhombic (delta) phase with a distorted bcc structure via an intermediate (gamma) phase, which has recently been proposed by Vohra and Spencer [Phys. Rev. Lett. 86, 3068 (2001)]. Both the delta and the gamma phases had a unique zigzag-chain-like structure, which resulted from an orthorhombic distortion. The delta-gamma transition could be explained as a rearrangement of the packing between the zigzag chains.
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Affiliation(s)
- Y Akahama
- Faculty Science, Himeji Institute of Technology, 3-2-1 Koto, Kamigohri, Hyogo 678-1297, Japan
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Vohra YK, Spencer PT. Novel gamma-phase of titanium metal at megabar pressures. PHYSICAL REVIEW LETTERS 2001; 86:3068-3071. [PMID: 11290109 DOI: 10.1103/physrevlett.86.3068] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2000] [Indexed: 05/23/2023]
Abstract
Group IV transition metals titanium, zirconium, and hafnium are expected to transform from an ambient hexagonal close packed (hcp, alpha-phase) to a body centered cubic (bcc, beta-phase) at high pressures. This transition path is usually facilitated by the occurrence of an intermediate hexagonal phase (distorted bcc, omega-phase). The existence of a bcc phase in zirconium and hafnium at high pressures has been known for the past ten years; however, its occurrence in titanium has been theoretically predicted but never observed. We report a novel unexpected transformation in titanium metal from an omega phase to an orthorhombic phase (distorted hcp, gamma-phase) at a pressure of 116+/-4 GPa.
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Affiliation(s)
- Y K Vohra
- Department of Physics, University of Alabama at Birmingham, Birmingham, Alabama 35294-1170, USA
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Zhao YC, Porsch F, Holzapfel WB. Evidence for the occurrence of a prototype structure in Sc under pressure. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:9715-9720. [PMID: 9984703 DOI: 10.1103/physrevb.54.9715] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Cheng YT, Meng WJ. Epitaxial growth of Omega-Titanium on the (111) surface of Alpha-Iron. PHYSICAL REVIEW LETTERS 1996; 76:3999-4002. [PMID: 10061166 DOI: 10.1103/physrevlett.76.3999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Johansson B, Ahuja R, Eriksson O, Wills JM. Anomalous fcc crystal structure of thorium metal. PHYSICAL REVIEW LETTERS 1995; 75:280-283. [PMID: 10059654 DOI: 10.1103/physrevlett.75.280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Ahuja R, Söderlind P, Trygg J, Melsen J, Wills JM, Johansson B, Eriksson O. Influence of pseudocore valence-band hybridization on the crystal-structure phase stabilities of transition metals under extreme compressions. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:14690-14693. [PMID: 9975711 DOI: 10.1103/physrevb.50.14690] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ahuja R, Wills JM, Johansson B, Eriksson O. Crystal structures of Ti, Zr, and Hf under compression: Theory. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:16269-16279. [PMID: 10008208 DOI: 10.1103/physrevb.48.16269] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Xia H, Xia Q, Ruoff AL. High-pressure structure of gallium nitride: Wurtzite-to-rocksalt phase transition. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:12925-12928. [PMID: 10005492 DOI: 10.1103/physrevb.47.12925] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Cortella L, Vinet B, Desré PJ, Pasturel A, Paxton AT. Evidences of transitory metastable phases in refractory metals solidified from highly undercooled liquids in a drop tube. PHYSICAL REVIEW LETTERS 1993; 70:1469-1472. [PMID: 10053300 DOI: 10.1103/physrevlett.70.1469] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Moriarty JA. Ultrahigh-pressure structural phase transitions in Cr, Mo, and W. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 45:2004-2014. [PMID: 10001712 DOI: 10.1103/physrevb.45.2004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Xia H, Ruoff AL, Vohra YK. Temperature dependence of the omega -bcc phase transition in zirconium metal. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:10374-10376. [PMID: 9999053 DOI: 10.1103/physrevb.44.10374] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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