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MA: Fachverband Magnetismus

MA 59: Magnonics III

MA 59.1: Vortrag

Freitag, 13. März 2026, 09:30–09:45, POT/0361

Magnetization dynamics in RMn₆Sn₆ crystals investigated by broadband ferromagnetic resonance spectroscopy — •Philipp Schwenke¹, David Weffling^1,3, Kyle Fruhling², Vitaliy Vasyuchka¹, Fazel Tafti², and Mathias Weiler¹ — ¹Fachbereich Physik and Landesforschungszentrum OPTIMAS, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau, 67663 Kaiserslautern, Germany — ²Department of Physics, Boston College, Chestnut Hill, MA 02467, USA — ³Present address: Department of Physics and Materials Science, University of Luxembourg, L-4362 Esch-sur-Alzette, Luxembourg

The RMn₆Sn₆-material family is known for hosting complex magnetic orders [1]. Their Kagome and triangular lattices give rise to an unconventional band structure forming flat bands and Dirac cones leading to significant anomalous Hall- and Nernst-effects [2,3]. In this study, we investigate the magnetization dynamics of ErMn₆Sn₆ and YbMn₆Sn₆. We track characteristic phase transitions of the materials and the accompanying signatures in the magnetization dynamics over temperature. We find that the phase transitions are in agreement with previous results, while the spin dynamical signatures have not been discussed before. This study highlights the potential of using broadband ferromagnetic resonance spectroscopy to investigate the magnetic properties in RMn₆Sn₆
[1] L. Nil, et. al, Phys. Rev. B 111, 054410 (2025)
[2] A. Bolens and N. Nagaosa, Phys. Rev. B 99, 165141 (2019)
[3] K. Fruhling, et. al, Phys. Rev. Mat. 8, 094411 (2021)

Keywords: RMn6Sn6; ErMn6Sn6; YbMn6Sn6; Ferromagnetic Resonance