Resonant x-ray studies of altermagnetic α-MnTe thin films

The magnetic and electronic structure of altermagnetic α-MnTe exhibits large spin-splitting making it promising for spintronic applications [1,2]. However, direct information about the chiral nature of the magnetic excitations is lacking. We present momentum and polarization-resolved resonant inelastic x-ray scattering (RIXS) measurements on α-MnTe thin films [3] focusing on the low energy excitations. Our results provide insights into the magnetic excitation spectrum of altermagnetic α-MnTe.

[1] Chiral Split Magnon in Altermagnetic MnTe, Z. Liu, et al., (2024), DOI: 10.1103/PhysRevLett.133.156702

[2] Observation of a Giant Band Splitting in Altermagnetic MnTe, T. Osumi, et al., (2024), DOI: https://doi.org/10.1103/PhysRevB.109.115102

[3] Unexpected Tuning of the Anomalous Hall Effect in Altermagnetic MnTe Thin Films, S. Bey, et al., (2024), DOI: https://doi.org/10.48550/arXiv.2409.04567