| Title | Spontaneous spin momentum locking and anomalous Hall effect in BiFeO3 |
| Author | |
| Corresponding Author | Huang, Li |
| Publication Years | 2023-02-15
|
| DOI | |
| Source Title | |
| ISSN | 2469-9950
|
| EISSN | 2469-9969
|
| Volume | 107Issue:7 |
| Abstract | The studies for the discovery of new nontrivial degrees of freedom of Bloch electrons are at the forefront of condensed matter physics. The focus remains on the spin-orbit coupling (SOC)-induced pseudospin valley state and its interplay with time inversion asymmetry. Here we propose a distinct magnetic order-protected, momentum-dependent spin-splitting valley (SSV) state in polar bulk BiFeO3. The octahedral distortion-induced spatial asymmetry of the superexchange interaction path breaks spin degeneracy and antiferromagnetic time -reversal symmetry. The SSV polarization is caused by crystal symmetry-related intrinsic SOC and leads to nonzero anomalous Hall conductivity (AHC) and magneto-optical effects. The anomalous Hall conductivity and magneto-optical effects are expected to be most prominent if magnetic and electric dipoles are orthogonal. Due to the ferroelectric nature of BiFeO3, such unconventional magneto-optical effect and AHC in fully compensated magnetic order offers straightforward tunability under an electric field. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | Ministry of Science and Technology of the People's Republic of China[2022YFA1402903]
; National Natural Science Foundation of China[12004160]
; Open Project of Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices[2020B1212060030]
; Shenzhen Science and Technology Program[KQTD20190929173815000]
; Guangdong Innovative and Entrepreneurial Research Team Program[2019ZT08C044]
; Guangdong Provincial Key Laboratory of Computational Science and Material Design[2019B030301001]
|
| WOS Research Area | Materials Science
; Physics
|
| WOS Subject | Materials Science, Multidisciplinary
; Physics, Applied
; Physics, Condensed Matter
|
| WOS Accession No | WOS:000944148000002
|
| Publisher | |
| ESI Research Field | PHYSICS
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/513396 |
| Department | Department of Physics 前沿与交叉科学研究院 |
| Affiliation | 1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China 2.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Guangdong, Peoples R China 3.Quantum Sci Ctr Guangdong Hong Kong Macao Greater, Hong Kong 508045, Peoples R China |
| First Author Affilication | Department of Physics |
| Corresponding Author Affilication | Department of Physics |
| First Author's First Affilication | Department of Physics |
| Recommended Citation GB/T 7714 |
Farooq, M. Umar,Gui, Zhigang,Huang, Li. Spontaneous spin momentum locking and anomalous Hall effect in BiFeO3[J]. PHYSICAL REVIEW B,2023,107(7).
|
| APA |
Farooq, M. Umar,Gui, Zhigang,&Huang, Li.(2023).Spontaneous spin momentum locking and anomalous Hall effect in BiFeO3.PHYSICAL REVIEW B,107(7).
|
| MLA |
Farooq, M. Umar,et al."Spontaneous spin momentum locking and anomalous Hall effect in BiFeO3".PHYSICAL REVIEW B 107.7(2023).
|
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