1
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Diethrich TJ, Zavalij PY, Gnewuch S, Rodriguez EE. Orbital Contribution to Paramagnetism and Noninnocent Thiophosphate Anions in Layered Li 2MP 2S 6 Where M = Fe and Co. Inorg Chem 2021; 60:10280-10290. [PMID: 34232031 DOI: 10.1021/acs.inorgchem.1c00710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Transition-metal thiophosphates and selenophosphates are layered systems with the potential for displaying two-dimensional (2D) magnetic phenomena. We present the crystal structures and magnetic properties of two lithium transition-metal thiophosphates, Li1.56Co0.71P2S6 and Li2.26Fe0.94P2S6. The previously unreported Li1.56Co0.71P2S6 crystallizes in the trigonal space group P31m with lattice parameters a = 6.0193(6) Å and c = 6.5675(9) Å. The CoS6 octahedra are arranged in a honeycomb lattice and form 2D layers separated by lithium cations. The previously solved Li2.26Fe0.94P2S6 is isostructural to Li1.56Co0.71P2S6 but displays site mixing between the Li+ and Fe2+ cations within the thiophosphate layer. Unusually, Li1.56Co0.71P2S6 appears to have P2S63- and not P2S64- anions. We therefore term it a "noninnocent" anion because of the ambiguous nature of its oxidation state. Combined neutron diffraction and magnetization measurements reveal that both Li1.56Co0.71P2S6 and Li2.26Fe0.94P2S6 display magnetic anisotropy as well as no long-range magnetic order down to 5 K. In the iron thiophosphate, susceptibility indicates an effective moment of 5.44(3) μB, which may be best described by an S + L model, where S = 2 and L = 2, or close to the free ion limit. In the cobalt thiophosphate, we found the effective moment to be 4.35(2) μB, which would point to an S = 3/2 and L = 1 model due to octahedral crystal-field splitting.
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Affiliation(s)
- Timothy J Diethrich
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Peter Y Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Stephanie Gnewuch
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Efrain E Rodriguez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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2
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Takemoto Y, Zaytseva E, Suzuki K, Yoshioka N, Takanishi Y, Funahashi M, Uchida Y, Akita T, Park J, Sato S, Clevers S, Coquerel G, Mazhukin DG, Shimono S, Sugiyama M, Takahashi H, Yamauchi J, Tamura R. Unique Superparamagnetic-like Behavior Observed in Non-π-delocalized Nitroxide Diradical Compounds Showing Discotic Liquid Crystalline Phase. Chemistry 2018; 24:17293-17302. [PMID: 30378204 DOI: 10.1002/chem.201803534] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/24/2018] [Indexed: 01/09/2023]
Abstract
A unique superparamagnetic-like behavior and a large "positive magneto-LC effect" were observed in the solid phases and the hexagonal columnar (Colh ) liquid crystalline (LC) phase, respectively, of novel achiral non-π-delocalized nitroxide diradical compounds (R,S)-1, which showed polymorphism in the solid phases (solids I and II). The SQUID magnetization measurement revealed that (1) (R,S)-1 containing a small amount of racemic diastereomers (R*,R*)-1 possessed an unusual and large temperature-independent magnetic susceptibility (χTIM >0) component in the original nanocrystalline solid I that was responsible for the observed superparamagnetic-like behavior under low magnetic fields and did not arise from the contamination by extrinsic magnetic metal or metal ion impurities, besides ordinary temperature-dependent paramagnetic susceptibility (χpara >0) and temperature-independent diamagnetic susceptibility (χdia <0) components, (2) a large increase in molar magnetic susceptibility (χM ) (positive magneto-LC effect) that occurred at the solid I-to-liquid crystal transition upon heating was preserved as an additional χTIM increase in the resulting polymorphic nanocrystalline solid II by cooling, and (3) such unique magnetic phenomena were induced by thermal processing for (R,S)-1 or by adding a small amount of (R*,R*)-1 to (R,S)-1 as the impurity.
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Affiliation(s)
- Yusa Takemoto
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Elena Zaytseva
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan.,N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk State University, 9 Akademika Lavrentieva Ave., Novosibirsk 630090 (Russia), 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Katsuaki Suzuki
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Naoki Yoshioka
- Department of Applied Chemistry, Keio University, Yokohama, Kanagawa, 223-8522, Japan
| | - Yoichi Takanishi
- Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Masahiro Funahashi
- Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, Takamatsu, Kagawa, 761-0396, Japan
| | - Yoshiaki Uchida
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Takuya Akita
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Jayeong Park
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shuichi Sato
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Simon Clevers
- Normandie Université, SMS, EA 3233, Univ Rouen, Crystal Genesis Unit, 76821, Mont Saint-Aignan Cedex, France
| | - Gérard Coquerel
- Normandie Université, SMS, EA 3233, Univ Rouen, Crystal Genesis Unit, 76821, Mont Saint-Aignan Cedex, France
| | - Dmitrii G Mazhukin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk State University, 9 Akademika Lavrentieva Ave., Novosibirsk 630090 (Russia), 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Satoshi Shimono
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Masahito Sugiyama
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hiroki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Jun Yamauchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Rui Tamura
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
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3
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Choudhuri I, Pathak B. Ferromagnetism and Half-Metallicity in a High-Band-Gap Hexagonal Boron Nitride System. Chemphyschem 2018; 19:153-161. [PMID: 29028146 DOI: 10.1002/cphc.201700759] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Indexed: 11/08/2022]
Abstract
Metal-free half-metallicity is the subject of intense research in the field of spintronics devices. Using density functional theoretical calculations, atom-thin hexagonal boron nitride (h-BN)-based systems are studied for possible spintronics applications. Ferromagnetism is observed in patterned C-doped h-BN systems. Interestingly, such a patterned C-doped h-BN exhibits half-metallicity with a Curie temperature of approximately 324 K at a particular C-doping concentration. It shows half-metallicity more than metal-free systems studied to date. Thus, such a BN-based system can be used to achieve a 100 % spin-polarised current at the Fermi level. Furthermore, this C-doped system shows excellent dynamical, thermal, and mechanical properties. Therefore, a stable metal-free planar ferromagnetic half-metallic h-BN-based system is proposed for use in room-temperature spintronics devices.
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Affiliation(s)
- Indrani Choudhuri
- Discipline of Chemistry, Indian Institute of Technology (IIT) Indore, Indore. M.P., 453552, India
| | - Biswarup Pathak
- Discipline of Chemistry, Indian Institute of Technology (IIT) Indore, Indore. M.P., 453552, India.,Discipline of Metallurgy Engineering and Materials Science, Indian Institute of Technology (IIT) Indore, Indore. M.P., 453552, India
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4
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Choudhuri I, Pathak B. Ferromagnetism and Half-Metallicity in Atomically Thin Holey Nitrogenated Graphene Based Systems. Chemphyschem 2017; 18:2336-2346. [DOI: 10.1002/cphc.201700633] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Indrani Choudhuri
- Discipline of Chemistry; Indian Institute of Technology (IIT) Indore; Indore M.P. 453552 India
| | - Biswarup Pathak
- Discipline of Chemistry; Indian Institute of Technology (IIT) Indore; Indore M.P. 453552 India
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology (IIT) Indore; Indore M.P. 453552 India
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5
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Gracia J, Munarriz J, Polo V, Sharpe R, Jiao Y, Niemantsverdriet JWH, Lim T. Analysis of the Magnetic Entropy in Oxygen Reduction Reactions Catalysed by Manganite Perovskites. ChemCatChem 2017. [DOI: 10.1002/cctc.201700302] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jose Gracia
- SynCat@Beijing; Synfuels China Technology Co. Ltd.; Beijing 101407 P.R. China
| | - Julen Munarriz
- Departamento de Química Física and Instituto de Biocomputación y Física de Sistemas Complejos (BIFI); Universidad de Zaragoza; Zaragoza Spain
| | - Victor Polo
- Departamento de Química Física and Instituto de Biocomputación y Física de Sistemas Complejos (BIFI); Universidad de Zaragoza; Zaragoza Spain
| | - Ryan Sharpe
- SynCat@Beijing; Synfuels China Technology Co. Ltd.; Beijing 101407 P.R. China
| | - Yunzhe Jiao
- SynCat@Beijing; Synfuels China Technology Co. Ltd.; Beijing 101407 P.R. China
| | - J. W. Hans Niemantsverdriet
- SynCat@Beijing; Synfuels China Technology Co. Ltd.; Beijing 101407 P.R. China
- SynCat@Differ; Syngaschem BV; PO Box 6336 5600 HH Eindhoven The Netherlands
| | - Tingbin Lim
- SynCat@Beijing; Synfuels China Technology Co. Ltd.; Beijing 101407 P.R. China
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6
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Benndorf C, Stein S, Heletta L, Kersting M, Eckert H, Pöttgen R. A25Mg,89Y and115In solid state MAS NMR study of YT2X and Y(T0.5T′0.5)2X (T/T′ = Pd, Ag, Au; X = Mg, In) Heusler phases. Dalton Trans 2017; 46:250-259. [DOI: 10.1039/c6dt04097g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Yttrium–transition metal–magnesium (indium) Heusler phases were synthesized from the elements in sealed niobium ampoules in a high-frequency furnace or by arc-melting, respectively.
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Affiliation(s)
- Christopher Benndorf
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
- Institut für Physikalische Chemie
| | - Sebastian Stein
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Lukas Heletta
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Marcel Kersting
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie
- Universität Münster
- D-48149 Münster
- Germany
- Institute of Physics in Sao Carlos
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
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7
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Pecher O, Mausolf B, Peters V, Lamberts K, Korthaus A, Haarmann F. Unravelling Local Atomic Order of the Anionic Sublattice in M(Al1−xGax)4with M=Sr and Ba by Using NMR Spectroscopy and Quantum Mechanical Modelling. Chemistry 2016; 22:17833-17842. [DOI: 10.1002/chem.201602475] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Oliver Pecher
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Strasse 40 01187 Dresden Germany
- Department of Chemistry; University of Cambridge; Lensfield Road CB2 1EW Cambridge UK
| | - Bernhard Mausolf
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Volker Peters
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Kevin Lamberts
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Alexander Korthaus
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
| | - Frank Haarmann
- RWTH Aachen University; Institut für Anorganische Chemie (IAC); Landoltweg 1 52074 Aachen Germany
- Max-Planck-Institut für Chemische Physik fester Stoffe; Nöthnitzer Strasse 40 01187 Dresden Germany
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8
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Pecher O, Mausolf B, Lamberts K, Oligschläger D, Niewieszol (née Merkens) C, Englert U, Haarmann F. The Solid Solution Sr
1−
x
Ba
x
Ga
2
: Substitutional Disorder and Chemical Bonding Visited by NMR Spectroscopy and Quantum Mechanical Calculations. Chemistry 2015; 21:13971-82. [DOI: 10.1002/chem.201501910] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Oliver Pecher
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
- Max‐Planck‐Institut für Chemische Physik fester Stoffe (MPI CPfS), Nöthnitzer Straße 40, 01187 Dresden (Germany)
- Present address: University of Cambridge, Department of Chemistry, Lensfield Road CB2 1EW, Cambridge (UK)
| | - Bernhard Mausolf
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
| | - Kevin Lamberts
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
| | - Dirk Oligschläger
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
| | | | - Ulli Englert
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
| | - Frank Haarmann
- RWTH Aachen University, Institut für Anorganische Chemie (IAC), Landoltweg 1, 52074 Aachen (Germany)
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9
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Benndorf C, Niehaus O, Eckert H, Janka O. 27Al and45Sc NMR Spectroscopy on ScT2Al and Sc(T0.5T′0.5)2Al (T=T′= Ni, Pd, Pt, Cu, Ag, Au)HeuslerPhases and Superconductivity in Sc(Pd0.5Au0.5)2Al. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400509] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Kreiner G, Kalache A, Hausdorf S, Alijani V, Qian JF, Shan G, Burkhardt U, Ouardi S, Felser C. New Mn2-based Heusler Compounds. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300665] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Hasnip PJ, Loach CH, Smith JH, Probert MIJ, Gilks D, Sizeland J, Lari L, Sagar J, Yoshida K, Oogane M, Hirohata A, Lazarov VK. The Effect of Cobalt-Sublattice Disorder on Spin Polarisation in Co₂Fe xMn 1-xSi Heusler Alloys. MATERIALS 2014; 7:1473-1482. [PMID: 28788526 PMCID: PMC5453278 DOI: 10.3390/ma7031473] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 12/26/2013] [Accepted: 02/18/2014] [Indexed: 11/16/2022]
Abstract
In this work we present a theoretical study of the effect of disorder on spin polarisation at the Fermi level, and the disorder formation energies for Co₂FexMn1-xSi (CFMS) alloys. The electronic calculations are based on density functional theory with a Hubbard U term. Chemical disorders studied consist of swapping Co with Fe/Mn and Co with Si; in all cases we found these are detrimental for spin polarisation, i.e., the spin polarisation not only decreases in magnitude, but also can change sign depending on the particular disorder. Formation energy calculation shows that Co-Si disorder has higher energies of formation in CFMS compared to Co₂MnSi and Co₂FeSi, with maximum values occurring for x in the range 0.5-0.75. Cross-sectional structural studies of reference Co₂MnSi, Co₂Fe0.5Mn0.5Si, and Co₂FeSi by Z-contrast scanning transmission electron microscopy are in qualitative agreement with total energy calculations of the disordered structures.
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Affiliation(s)
- Philip J Hasnip
- Department of Physics, University of York, York YO10 5DD, UK.
| | | | - Joseph H Smith
- Department of Physics, University of York, York YO10 5DD, UK.
| | | | - Daniel Gilks
- Department of Physics, University of York, York YO10 5DD, UK.
| | - James Sizeland
- Department of Physics, University of York, York YO10 5DD, UK.
| | - Leonardo Lari
- Department of Physics, University of York, York YO10 5DD, UK.
| | - James Sagar
- Department of Physics, University of York, York YO10 5DD, UK.
| | - Kenta Yoshida
- Institute of Advanced Research, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan.
| | - Mikihiko Oogane
- Department of Applied Physics, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-05, Aramaki, Aoba-ku, Sendai 980-8579, Japan.
| | - Atsufumi Hirohata
- Department of Electronics, University of York, York YO10 5DD, UK.
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan.
| | - Vlado K Lazarov
- Department of Physics, University of York, York YO10 5DD, UK.
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12
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Pielnhofer F, Rothballer J, Peter P, Yan W, Schappacher FM, Pöttgen R, Weihrich R. Half Antiperovskites VI: On the Substitution Effects in Shandites InxSn2-xCo3S2. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300547] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Rothballer J, Bachhuber F, Rommel SM, Söhnel T, Weihrich R. Origin and effect of In–Sn ordering in InSnCo3S2: a neutron diffraction and DFT study. RSC Adv 2014. [DOI: 10.1039/c4ra03800b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Pons-Balagué A, Piligkos S, Teat SJ, Costa JS, Shiddiq M, Hill S, Castro GR, Ferrer-Escorihuela P, Sañudo EC. New Nanostructured Materials: Synthesis of Dodecanuclear NiIIComplexes and Surface Deposition Studies. Chemistry 2013; 19:9064-71. [DOI: 10.1002/chem.201204081] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 04/03/2013] [Indexed: 11/06/2022]
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15
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Winterlik J, Chadov S, Gupta A, Alijani V, Gasi T, Filsinger K, Balke B, Fecher GH, Jenkins CA, Casper F, Kübler J, Liu GD, Gao L, Parkin SSP, Felser C. Design scheme of new tetragonal Heusler compounds for spin-transfer torque applications and its experimental realization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:6283-7. [PMID: 22965466 PMCID: PMC3546386 DOI: 10.1002/adma.201201879] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 06/29/2012] [Indexed: 05/30/2023]
Abstract
Band Jahn-Teller type structural instabilities of cubic Mn(2)YZ Heusler compounds causing tetragonal distortions can be predicted by ab initio band-structure calculations. This allows for identification of new Heusler materials with tunable magnetic and structural properties that can satisfy the demands for spintronic applications, such as in spin-transfer torque-based devices.
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Affiliation(s)
- Jürgen Winterlik
- Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-UniversitätStaudinger Weg 9, 55128 Mainz, Germany
| | - Stanislav Chadov
- Max Planck Institute for Chemical Physics of SolidsNöthnitzer Straße 40, 01187 Dresden, Germany
| | - Arunava Gupta
- Center for Materials for Information Technology and Department of Chemistry, University of AlabamaTuscaloosa, Alabama 35487, USA
| | - Vajiheh Alijani
- Max Planck Institute for Chemical Physics of SolidsNöthnitzer Straße 40, 01187 Dresden, Germany
| | - Teuta Gasi
- Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-UniversitätStaudinger Weg 9, 55128 Mainz, Germany
| | - Kai Filsinger
- Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-UniversitätStaudinger Weg 9, 55128 Mainz, Germany
| | - Benjamin Balke
- Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-UniversitätStaudinger Weg 9, 55128 Mainz, Germany
| | - Gerhard H Fecher
- Max Planck Institute for Chemical Physics of SolidsNöthnitzer Straße 40, 01187 Dresden, Germany
| | - Catherine A Jenkins
- Advanced Light Source Lawrence Berkeley National LaboratoryBerkeley, CA 94720, USA
| | - Frederick Casper
- Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-UniversitätStaudinger Weg 9, 55128 Mainz, Germany
| | - Jürgen Kübler
- Institut für Festkörperphysik Technische UniversitätKarolinenplatz 5, 64289 Darmstadt, Germany
| | - Guo-Dong Liu
- School of Materials Sciences and Engineering, Hebei University of TechnologyTianjin 300130, China
| | - Li Gao
- IBM Research Division, Almaden Research CenterSan Jose, CA 95120, USA
| | - Stuart S P Parkin
- IBM Research Division, Almaden Research CenterSan Jose, CA 95120, USA
| | - Claudia Felser
- Max Planck Institute for Chemical Physics of SolidsNöthnitzer Straße 40, 01187 Dresden, Germany
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16
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Rothballer J, Bachhuber F, Pielnhofer F, Schappacher FM, Pöttgen R, Weihrich R. Effect of In-Sn Ordering on Semiconducting Properties in InSnCo3S2- X-ray,119Sn Mößbauer Spectroscopy, and DFT Studies. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200892] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Müchler L, Zhang H, Chadov S, Yan B, Casper F, Kübler J, Zhang SC, Felser C. Topological Insulators from a Chemist’s Perspective. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202480] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Müchler L, Zhang H, Chadov S, Yan B, Casper F, Kübler J, Zhang SC, Felser C. Topological Insulators from a Chemist’s Perspective. Angew Chem Int Ed Engl 2012; 51:7221-5. [DOI: 10.1002/anie.201202480] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Indexed: 11/08/2022]
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19
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Shang R, Sun X, Wang Z, Gao S. Zinc‐Diluted Magnetic Metal Formate Perovskites: Synthesis, Structures, and Magnetism of [CH
3
NH
3
][Mn
x
Zn
1−
x
(HCOO)
3
] (
x
=0–1). Chem Asian J 2012; 7:1697-707. [DOI: 10.1002/asia.201200139] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Ran Shang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86)‐10‐62751708
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong (China)
| | - Xuan Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong (China)
| | - Zhe‐Ming Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86)‐10‐62751708
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86)‐10‐62751708
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20
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Xiong DB, Okamoto NL, Waki T, Zhao Y, Kishida K, Inui H. High-Tc ferromagnetic semiconductor-like behavior and unusual electrical properties in compounds with a 2×2×2 superstructure of the half-Heusler phase. Chemistry 2012; 18:2536-42. [PMID: 22262636 DOI: 10.1002/chem.201102939] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Indexed: 11/12/2022]
Abstract
Heusler phases, including the full- and half-Heusler families, represent an outstanding class of multifunctional materials on account of their great tunability in compositions, valence electron counts (VEC), and properties. Here we demonstrate a systematic design of a series of new compounds with a 2×2×2 superstructure of the half-Heusler unit cell in X-Y-Z (X=Fe, Ru, Co, Rh, Ir; Y=Zn, Mn; Z=Sn, Sb) systems. Their structures were solved by using both powder and single-crystal X-ray diffraction, and also directly observed by using high-angle annular dark-field imaging in a scanning transmission electron microscope (HAADF-STEM). The VEC values of these new compounds span a wide and continuous range comparable to those for the full- and half-Heusler families, thereby implying tunability in compositions and physical properties in the superstructure. In fact, we observed abnormal electrical properties and a ferromagnetic semiconductor-like behavior with a high and tunable Curie temperature in these superstructures.
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Affiliation(s)
- Ding-Bang Xiong
- Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan.
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21
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Bi Y, Guo YN, Zhao L, Guo Y, Lin SY, Jiang SD, Tang J, Wang BW, Gao S. Capping Ligand Perturbed Slow Magnetic Relaxation in Dysprosium Single-Ion Magnets. Chemistry 2011; 17:12476-81. [DOI: 10.1002/chem.201101838] [Citation(s) in RCA: 228] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Indexed: 11/09/2022]
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22
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Basit L, Fecher GH, Chadov S, Balke B, Felser C. Quaternary Heusler Compounds without Inversion Symmetry: CoFe
1+
x
Ti
1–
x
Al and CoMn
1+
x
V
1–
x
Al. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lubna Basit
- Johannes‐Gutenberg‐Universität, Institut für analytische und anorganische Chemie, 55099 Mainz, Germany, Fax: +49‐6131‐39‐26267
| | - Gerhard H. Fecher
- Johannes‐Gutenberg‐Universität, Institut für analytische und anorganische Chemie, 55099 Mainz, Germany, Fax: +49‐6131‐39‐26267
| | - Stanislav Chadov
- Johannes‐Gutenberg‐Universität, Institut für analytische und anorganische Chemie, 55099 Mainz, Germany, Fax: +49‐6131‐39‐26267
| | - Benjamin Balke
- Johannes‐Gutenberg‐Universität, Institut für analytische und anorganische Chemie, 55099 Mainz, Germany, Fax: +49‐6131‐39‐26267
| | - Claudia Felser
- Johannes‐Gutenberg‐Universität, Institut für analytische und anorganische Chemie, 55099 Mainz, Germany, Fax: +49‐6131‐39‐26267
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23
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Graf T, Casper F, Winterlik J, Balke B, Fecher GH, Felser C. Crystal Structure of New Heusler Compounds. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900036] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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