Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 21: Poster I

MA 21.72: Poster

Dienstag, 13. März 2018, 09:30–13:00, Poster A

Magnon-phonon coupling in hybrid-nanostructures — •T. Luschmann^1,2, D. Schwienbacher^1,2,3, R. Gross^1,2,3, M. Weiler^1,2, and H. Huebl^1,2,3 — ¹Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, Garching, Germany — ²Physik-Department, Technische Universität München, Garching, Germany — ³Nanosystems Initiative Munich, München, Germany

Phononic crystals are ideal candidates for localizing phonons up to GHz frequencies in phononic cavities [1]. Combining these structures with magnetic materials with similar magnetic resonance frequencies should allow for resonant, artificial magnon-phonon coupling. We present a finite element study for the realization of phononic cavities in SiN mechanical resonators and discuss the magnon-phonon coupling in these devices. In addition, we will present first samples and measurements.

[1] M. Eichenfield et al. Optomechanical Crystals, Nature 462 (2009).