Regensburg 2025 – scientific programme

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MA: Fachverband Magnetismus

MA 41: Poster III

MA 41.46: Poster

Thursday, March 20, 2025, 15:00–17:30, P3

Growth of altermagnetic MnTe thin films — •Lena Hirnet, Marco Dittmar, Hannes Haberkamm, Maximilian Ünzelmann, and Friedrich Reinert — Exp. Physik VII and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, Germany

Recently, altermagnets have attracted great attention combining antiferromagnetic spin alignment in real space with a momentum-dependent spin polarization of the electronic states in the band structure. One of the proposed altermagnet work horse materials is MnTe [1,2]. Here, we investigate the epitaxial growth of MnTe on different substrates ranging from trivial band insulators to topological van der Waals metals with spin-momentum-locked surface states. The atomic and electronic structure of these films is studied employing low-energy electron- and x-ray diffraction as well as soft x-ray angle-resolved photoemission spectroscopy, respectively.

[1] L. Šmejkal et al., Phys. Rev. X 12, 031042 (2022)

[2] J. Krempaský et al., Nature 626, 517-522 (2024)

Keywords: MBE growth; MnTe; altermagnetism