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TT: Fachverband Tiefe Temperaturen

TT 69: Nano- and Optomechanics (joint session TT/CPP/HL)

TT 69.3: Vortrag

Freitag, 20. März 2020, 10:15–10:30, HSZ 03

Magnetomechanical Crystals — •T. Luschmann1,2,3, D. Schwienbacher1,2,3, J. Graf4, F. Engelhardt4, S. Viola Kusminskiy4, R. Gross1,2,3, and H. Huebl1,2,31Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, Garching, Germany — 2Physik-Department, Technische Universität München, Garching, Germany — 3Munich Center for Quantum Science and Technologies, München, Germany — 4Max Planck Institute for the Science of Light, Erlangen, Germany

Optomechanical crystals have become an established platform for the investigation of light-matter interaction, specifically in the context of optomechanical interaction. The success of this concept is founded in the simultaneous localization of GHz frequency phonons alongside THz photons in a suspended nanostructure [1]. We expand this concept with the introduction of magnetic materials capable of supporting spin-wave resonances in the GHz frequency range. We present finite element studies of phononic crystal cavities alongside micromagnetic simulations of spin-waves in nanostructured magnetic materials to tailor the geometries towards the realization of resonant, artificial magnon-phonon coupling. In addition, we will quantitatively compare numerical simulations with early experimental data. [1] Eichenfield et al. Nature 462, 7882 (2009).

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DPG-Physik > DPG-Verhandlungen > 2020 > Dresden