Dresden 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
MA: Fachverband Magnetismus
MA 8: Altermagnets II
MA 8.10: Talk
Monday, March 9, 2026, 17:30–17:45, HSZ/0002
Optical properties of altermagnetic candidate MnTe — •Ece Uykur1, Marcus Schmidt2, Stephan Winnerl1, and Alexander A. Tsirlin3 — 1Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany — 2Max Planck Institute for Chemical Physics of Solids, 01067 Dresden, Germany — 3Felix Bloch Institute for Solid-State Physics, University of Leipzig, 04103 Leipzig, Germany
MnTe is one of the promising altermagnetic candidates, where the band splitting, which is a key feature of altermagnetic materials, are confirmed via angle-resolved photoemission spectroscopy (ARPES) [1] and inelastic neutron scattering [2] experiments. In the next step, control of this unique property is desired. Given that in the spin configuration level the compound is antiferromagnetic, light control is a promising route in this regard.
Here, we present optical characterization of MnTe. Broadband infrared spectroscopy (down to the THz regime) and Raman spectroscopy of the compound are reported. Relevant phonon and magnon responses are identified. Results suggest that unusual optical activity is present in MnTe and provide a promising route for light-matter interactions.
[1] J. Krempaský et al., Nature 626, 517 (2024)
[2] Z. Liu et al., Phys. Rev. Lett. 133, 156702 (2024)