| Title | Role of Hidden Spin Polarization in Nonreciprocal Transport of Antiferromagnets |
| Author | |
| Corresponding Author | Liu, Qihang |
| Publication Years | 2022-12-28
|
| DOI | |
| Source Title | |
| ISSN | 0031-9007
|
| EISSN | 1079-7114
|
| Volume | 129Issue:27 |
| Abstract | The discovery of hidden spin polarization (HSP) in centrosymmetric nonmagnetic crystals, i.e., spatially distributed spin polarization originated from local symmetry breaking, has promised an expanded material pool for future spintronics. However, the measurements of such exotic effects have been limited to subtle space-and momentum-resolved techniques, unfortunately, hindering their applications. Here, we theoretically predict macroscopic non-reciprocal transports induced by HSP when coupling another spatially distributed quantity, such as staggered local moments in a space-time PT-symmetric anti-ferromagnet. By using a four-band model Hamiltonian, we demonstrate that HSP plays a crucial role in determining the asymmetric bands with respect to opposite momenta. Such band asymmetry leads to non-reciprocal nonlinear conductivity, exemplified by tetragonal CuMnAs via first-principles calculations. We further provide the material design principles for large nonlinear conductivity, including two-dimensional nature, multiple band crossings near the Fermi level, and symmetry protected HSP. Our Letter not only reveals direct spintronic applications of HSP (such as Ncel order detection), but also sheds light on finding observables of other hidden effects, such as hidden optical polarization and hidden Berry curvature. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | National Key R&D Program of China[2020YFA0308900]
; National Natural Science Foundation of China["11874195","12274194"]
; Guangdong Provincial Key Laboratory for Computational Science and Material Design[2019B030301001]
; Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS2019 0902092905285]
|
| WOS Research Area | Physics
|
| WOS Subject | Physics, Multidisciplinary
|
| WOS Accession No | WOS:000916673300001
|
| Publisher | |
| ESI Research Field | PHYSICS
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:1
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/430740 |
| Department | Institute for Quantum Science and Engineering 理学院_物理系 |
| Affiliation | 1.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 3.Southern Univ Sci & Technol, Guangdong Prov Key Lab Computat Sci & Mat Design, Shenzhen 518055, Peoples R China 4.Southern Univ Sci & Technol, Shenzhen Key Lab Adv Quantum Funct Mat & Devices, Shenzhen 518055, Peoples R China |
| First Author Affilication | Institute for Quantum Science and Engineering; Department of Physics |
| Corresponding Author Affilication | Institute for Quantum Science and Engineering; Department of Physics; Southern University of Science and Technology; |
| First Author's First Affilication | Institute for Quantum Science and Engineering |
| Recommended Citation GB/T 7714 |
Chen, Weizhao,Gu, Mingqiang,Li, Jiayu,et al. Role of Hidden Spin Polarization in Nonreciprocal Transport of Antiferromagnets[J]. PHYSICAL REVIEW LETTERS,2022,129(27).
|
| APA |
Chen, Weizhao,Gu, Mingqiang,Li, Jiayu,Wang, Panshuo,&Liu, Qihang.(2022).Role of Hidden Spin Polarization in Nonreciprocal Transport of Antiferromagnets.PHYSICAL REVIEW LETTERS,129(27).
|
| MLA |
Chen, Weizhao,et al."Role of Hidden Spin Polarization in Nonreciprocal Transport of Antiferromagnets".PHYSICAL REVIEW LETTERS 129.27(2022).
|
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