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Tunable cooperativity in coupled spin-cavity systems

Year: 2021
Type: article
Abstract: The authors experimentally demonstrate the tunable coupling between microwave photons and the magnetic excitations (magnons) in the topologically nontrivial skyrmion lattice phase of the helimagnet Cu${}_{2}$OSeO${}_{3}$. They exploit distinct microwave excitation geometry of the skyrmion lattice breathing mode to achieve a wide tunability of the effective magnon-photon coupling rate by small variations of the external magnetic field. The authors succeed in realizing high cooperativity for the dispersive magnon-photon coupling in the skyrmion lattice phase.
DOI: 10.1103/physrevb.104.l100415
Authors: Lukas Liensberger, Franz X. Haslbeck, Andreas Bauer, Helmuth Berger, Rudolf Gross, Hans Huebl, Christian Pfleiderer, Mathias Weiler
Institutions: Bavarian Academy of Sciences and Humanities, Walther Meissner Institute, Technical University of Munich, École Polytechnique Fédérale de Lausanne, Munich Center for Quantum Science and Technology, University of Kaiserslautern
Language: English
Open Access status: green
OpenAlex ID: W3132384581
FWCI: 0.759
Cites: 54
Cited by: 11
Related to: 20