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Tao LL, Zhang Q, Li H, Zhao HJ, Wang X, Song B, Tsymbal EY, Bellaiche L. Layer Hall Detection of the Néel Vector in Centrosymmetric Magnetoelectric Antiferromagnets. PHYSICAL REVIEW LETTERS 2024; 133:096803. [PMID: 39270175 DOI: 10.1103/physrevlett.133.096803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 07/23/2024] [Indexed: 09/15/2024]
Abstract
The efficient detection of the Néel vector in antiferromagnets is one of the prerequisites toward antiferromagnetic spintronic devices and remains a challenging problem. Here, we propose that the layer Hall effect can be used to efficiently detect the Néel vector in centrosymmetric magnetoelectric antiferromagnets. Thanks to the robust surface magnetization of magnetoelectric antiferromagnets, the combination of sizable exchange field and an applied electric field results in the layer-locked spin-polarized band edges. Moreover, the Berry curvature can be engineered efficiently by an electric field, which consequently gives rise to the layer-locked Berry curvature responsible for the layer Hall effect. Importantly, it is demonstrated that the layer Hall conductivity strongly depends on the Néel vector orientation and exhibits rich electromagnetic responses, which can be used to detect the Néel vector reversal. Based on density functional theory calculations, we exemplify those phenomena in the prototypical Cr_{2}O_{3} compound. A complete list of the magnetic point groups sustaining the layer Hall effect is presented, aiding the search for realistic materials. Our work proposes a novel approach to detect the Néel vector and holds great promise for antiferromagnetic spintronic applications.
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Affiliation(s)
| | | | | | - Hong Jian Zhao
- Key Laboratory of Material Simulation Methods and Software of Ministry of Education, College of Physics, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | | | | | | | - Laurent Bellaiche
- Smart Ferroic Materials Center, Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
- Department of Materials Science and Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel
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Zhao HJ, Liu X, Wang Y, Yang Y, Bellaiche L, Ma Y. Zeeman Effect in Centrosymmetric Antiferromagnetic Semiconductors Controlled by an Electric Field. PHYSICAL REVIEW LETTERS 2022; 129:187602. [PMID: 36374668 DOI: 10.1103/physrevlett.129.187602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Centrosymmetric antiferromagnetic semiconductors, although abundant in nature, seem less promising than ferromagnets and ferroelectrics for practical applications in semiconductor spintronics. As a matter of fact, the lack of spontaneous polarization and magnetization hinders the efficient utilization of electronic spin in these materials. Here, we propose a paradigm to harness electronic spin in centrosymmetric antiferromagnets via Zeeman spin splitting of electronic energy levels-termed as the spin Zeeman effect-which is controlled by an electric field. By symmetry analysis, we identify 21 centrosymmetric magnetic point groups that accommodate such a spin Zeeman effect. We further predict by first principles that two antiferromagnetic semiconductors, Fe_{2}TeO_{6} and SrFe_{2}S_{2}O, are excellent candidates showcasing Zeeman splittings as large as ∼55 and ∼30 meV, respectively, induced by an electric field of 6 MV/cm. Moreover, the electronic spin magnetization associated to the splitting energy levels can be switched by reversing the electric field. Our Letter thus sheds light on the electric-field control of electronic spin in antiferromagnets, which broadens the scope of application of centrosymmetric antiferromagnetic semiconductors.
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Affiliation(s)
- Hong Jian Zhao
- International Center for Computational Method and Software, College of Physics, Jilin University, Changchun 130012, China
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
| | - Xinran Liu
- International Center for Computational Method and Software, College of Physics, Jilin University, Changchun 130012, China
| | - Yanchao Wang
- International Center for Computational Method and Software, College of Physics, Jilin University, Changchun 130012, China
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yurong Yang
- National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory of Artificial Functional Materials, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Laurent Bellaiche
- Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
| | - Yanming Ma
- International Center for Computational Method and Software, College of Physics, Jilin University, Changchun 130012, China
- International Center of Future Science, Jilin University, Changchun 130012, China
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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Almoussawi B, Arevalo-Lopez AM, Simon P, Kabbour H. A high dimensional oxysulfide built from large iron-based clusters with partial charge-ordering. Chem Commun (Camb) 2021; 57:11859-11862. [PMID: 34704560 DOI: 10.1039/d1cc04501f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report the original Ba10Fe7.75Zn5.25S18Si3O12 oxysulfide which crystallizes in a new structural type. Contrary to the usual oxychalcogenides, it crystallizes with a non-centrosymmetric 3D spatial network structure built from large magnetic clusters consisting of twelve (Fe2+/3+/Zn)S3O tetrahedra decorating a central Fe2+S6 octahedron and exhibiting a spin glass state.
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Affiliation(s)
- Batoul Almoussawi
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France.
| | - Angel M Arevalo-Lopez
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France.
| | - Pardis Simon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France.
| | - Houria Kabbour
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France.
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Valldor M, Galle L, Eichler F, Wolf A, Morrow R. Synthesis, Crystal Structure, and Optical Characterization of the Sulfide Chloride Oxide CsBa 6V 4S 12ClO 4 with a Near-Infrared Fluorescence. Inorg Chem 2019; 58:14728-14733. [PMID: 31618005 DOI: 10.1021/acs.inorgchem.9b02393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
When CsCl, BaS, BaO, V, and S are reacted in a solid-state reaction under inert conditions, pure powders and single crystals of senary CsBa6V4S12ClO4 can be obtained. Its unique crystal structure has the symmetry R3̅H (no. 148) and unit cell parameters a = 9.0575(2) and c = 28.339(1) Å. The crystal structure contains polar units [VS3O]3- and a complex BaS7ClO2 coordination. The compound gets its deep-red color from a low-energy charge transfer, which can be explained by an electron transfer from S2- to V5+. In the near-infrared range, down-converted fluorescence occurs at 1.06 and 0.90 eV, and both emissions appear <450 ps after excitation at about 1.27 eV.
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Affiliation(s)
- Martin Valldor
- Leibniz Institute for Materials and Solid State Research IFW e.V. , Helmholtzstraße 20 , DE-01069 Dresden , Germany.,Centre for Materials Science and Nanotechnology (SMN), Department of Chemistry , University of Oslo , P.O. Box 1033 Blindern, N-0315 Oslo , Norway
| | - Lydia Galle
- Inorganic Chemistry , TU-Dresden , Bergstraße 66 , DE-01069 Dresden , Germany
| | - Franziska Eichler
- Physical Chemistry , TU-Dresden , Bergstraße 66b , DE-01069 Dresden , Germany
| | - André Wolf
- Physical Chemistry , TU-Dresden , Bergstraße 66b , DE-01069 Dresden , Germany
| | - Ryan Morrow
- Leibniz Institute for Materials and Solid State Research IFW e.V. , Helmholtzstraße 20 , DE-01069 Dresden , Germany
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