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Regensburg 2022 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 15: Nano- and Optomechanics

TT 15.5: Talk

Tuesday, September 6, 2022, 12:15–12:30, H23

Magnomechanics in suspended magnetic beamsKalle S. U. Kansanen1, •Camillo Tassi2, Harshad Mishra3, Mika A. Sillanpää3, and Tero T. Heikkilä11Department of Physics and Nanoscience Center, University of Jyväkylä, P.O. Box 35 (YFL), FI-40014 Jyväskylä, Finland — 2Donostia International Physics Center, 20018 Donostia-San Sebastian, Spain — 3Department of Applied Physics, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland

Cavity optomechanical systems have become a popular playground for studies of controllable nonlinear interactions between light and motion. An alternative scheme with much smaller footprint is provided by magnomechanics, where phonons interact with magnons, instead of photons. Here, we consider the magnomechanical interaction occurring in a suspended magnetic beam, a scheme in which both magnetic and mechanical modes physically overlap and can be detected and also driven individually. We show that a sizable interaction - originated from both magnetoelastic and demagnetizing coupling - can be produced if the beam has some initial static deformation.

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