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Mar 20 – 23, 2023
Campus Garching
Europe/Berlin timezone

Non-reciprocal magnons in non-centrosymmetric MnSi

Mar 20, 2023, 4:00 PM
2h
Yards 4 - 6 (Fakultät für Maschinenwesen)

Yards 4 - 6

Fakultät für Maschinenwesen

Board: MO-077
Poster Magnetism, Superconductivity, Topological Systems, Magnetic Thin Films an other electronic phenomena Poster Session MONDAY

Speaker

Robert Georgii

Description

Spin waves in chiral magnetic materials are strongly influenced by the Dzyaloshinskii-Moriya interaction, resulting in intriguing phenomena like nonreciprocal magnon propagation and magnetochiral dichroism. We studied the nonreciprocal magnon spectrum of the archetypical chiral magnet MnSi and its evolution as a function of magnetic field in all magnetic phases. Using inelastic neutron scattering, the magnon energies and their spectral weights are determined quantitatively after deconvolution with the instrumental resolution [1,2].

[1] T. Weber, J. Waizner, G. S. Tucker, R. Georgii, M. Kugler, A. Bauer, C. Pfleiderer,
M. Garst, and P. Böni, Phys. Rev. B 97, 224403 (2018).
[2] T. Weber, J. Waizner, G. S. Tucker, L. Beddrich, M. Skoulatos, R. Georgii, A. Bauer,
C. Pfleiderer, M. Garst, and P. Böni, AIP Advances 8, 101328 (2018).

Primary author

Dr Tobias Weber (Institut Laue-Langevin (ILL))

Co-authors

Andreas Bauer (Technische Universität München) Christian Pfleiderer Lukas Beddrich (Heinz Maier-Leibnitz Zentrum (MLZ)) Markos Skoulatos (TUM) Markus Garst (Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) Peter Böni (Technische Universität München) Robert Georgii

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