Planar Hall Effect in Antiferromagnetic MnTe Thin Films
Abstract
We show that the spin-orbit coupling (SOC) in α-MnTe impacts the transport behavior by generating an anisotropic valence-band splitting, resulting in four spin-polarized pockets near Γ. A minimal k·p model is constructed to capture this splitting by group theory analysis, a tight-binding model, and ab initio calculations. The model is shown to describe the rotation symmetry of the zero-field planer Hall effect (PHE). The PHE originates from the band anisotropy given by SOC, and is quantitatively estimated to be 25%–31% for an ideal thin film with a single antiferromagnetic domain.
- Authors:
-
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical and Computer Engineering
- Univ. of New Hampshire, Durham, NH (United States). Dept. of Physics and Materials Science Program
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of California, Riverside, CA (United States). Lab. for Terascale and Terahertz Electronics (LATTE), Dept. of Electrical and Computer Engineering
- Univ. of California, Riverside, CA (United States). Lab. for Terascale and Terahertz Electronics (LATTE), Dept. of Electrical and Computer Engineering
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical and Computer Engineering, and Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Riverside, CA (United States); Univ. of New Hampshire, Durham, NH (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1566696
- Alternate Identifier(s):
- OSTI ID: 1546186
- Grant/Contract Number:
- SC0012670; SC0016424
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 10; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics
Citation Formats
Yin, Gen, Yu, Jie-Xiang, Liu, Yizhou, Lake, Roger K., Zang, Jiadong, and Wang, Kang L. Planar Hall Effect in Antiferromagnetic MnTe Thin Films. United States: N. p., 2019.
Web. doi:10.1103/physrevlett.122.106602.
Yin, Gen, Yu, Jie-Xiang, Liu, Yizhou, Lake, Roger K., Zang, Jiadong, & Wang, Kang L. Planar Hall Effect in Antiferromagnetic MnTe Thin Films. United States. https://doi.org/10.1103/physrevlett.122.106602
Yin, Gen, Yu, Jie-Xiang, Liu, Yizhou, Lake, Roger K., Zang, Jiadong, and Wang, Kang L. Wed .
"Planar Hall Effect in Antiferromagnetic MnTe Thin Films". United States. https://doi.org/10.1103/physrevlett.122.106602. https://www.osti.gov/servlets/purl/1566696.
@article{osti_1566696,
title = {Planar Hall Effect in Antiferromagnetic MnTe Thin Films},
author = {Yin, Gen and Yu, Jie-Xiang and Liu, Yizhou and Lake, Roger K. and Zang, Jiadong and Wang, Kang L.},
abstractNote = {We show that the spin-orbit coupling (SOC) in α-MnTe impacts the transport behavior by generating an anisotropic valence-band splitting, resulting in four spin-polarized pockets near Γ. A minimal k·p model is constructed to capture this splitting by group theory analysis, a tight-binding model, and ab initio calculations. The model is shown to describe the rotation symmetry of the zero-field planer Hall effect (PHE). The PHE originates from the band anisotropy given by SOC, and is quantitatively estimated to be 25%–31% for an ideal thin film with a single antiferromagnetic domain.},
doi = {10.1103/physrevlett.122.106602},
journal = {Physical Review Letters},
number = 10,
volume = 122,
place = {United States},
year = {2019},
month = {3}
}
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