Sensitivity of the MnTe valence band to the orientation of magnetic moments

0574288 - FZÚ 2024 RIV US eng J - Journal Article
Junior, P.E.F. - De Mare, K.A. - Zollner, K. - Ahn, Kyo-Hoon - Erlingsson, S.I. - van Schilfgaarde, M. - Výborný, Karel
Sensitivity of the MnTe valence band to the orientation of magnetic moments.
Physical Review B. Roč. 107, č. 10 (2023), č. článku L100417. ISSN 2469-9950. E-ISSN 2469-9969
R&D Projects: GA ČR(CZ) GA22-21974S
EU Projects: European Commission(XE) 766566 - ASPIN
Institutional support: RVO:68378271
Keywords : antiferromagnets * semiconductors * effective models
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.7, year: 2022
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevB.107.L100417

An effective model of the hexagonal (NiAs-structure) manganese telluride valence band in the vicinity of the A-point of the Brillouin zone is derived. It is shown that while for the usual antiferromagnetic order (magnetic moments in the basal plane) band splitting at A is small, their out-of-plane rotation enhances the splitting dramatically (to about 0.5~eV). We propose extensions of recent experiments (Moseley et al., Phys. Rev. Materials 6, 014404) where such inversion of magnetocrystalline anisotropy has been observed in Li-doped MnTe, to confirm this unusual sensitivity of a semiconductor band structure to magnetic order.
Permanent Link: https://hdl.handle.net/11104/0344680