Sensitivity of the MnTe valence band to orientation of magnetic moments

Abstract

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.

arXiv comment5+epsilon pages, 4 figures; to appear in PRB

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• Temperature Dependence of Relativistic Valence Band Splitting Induced by an Altermagnetic Phase Transition
• Altermagnetic surface states: towards the observation and utilization of altermagnetism in thin films, interfaces and topological materials
• Giant strain-induced spin splitting effect in MnTe, a $g$-wave altermagnetic semiconductor
• Staggered Dzyaloshinskii-Moriya inducing weak ferromagnetism in centrosymmetric altermagnets and weak ferrimagnetism in noncentrosymmetric altermagnets
• Anisotropic light-tailored RKKY interaction in two-dimensional $d$-wave altermagnets
• Altermagnetism in MnTe: origin, predicted manifestations, and routes to detwinning
• Diagnosing Altermagnetic Phases through Quantum Oscillations
• Antiferromagnetic resonance in $\alpha$-MnTe
• Dominant orbital magnetization in the prototypical altermagnet MnTe
• Quasiparticle interference in altermagnets
• Relativistic Spin-momentum locking in altermagnets
• Anomalous Spectroscopical Effects in an Antiferromagnetic Semiconductor
• Multipole analysis of spin currents in altermagnetic MnTe
• Theory of bound magnetic polarons in cubic and uniaxial antiferromagnets
• Uniaxial stress tuning of the anomalous Hall effect in Mn3Ge