Dresden 2014 – wissenschaftliches Programm

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AGjDPG: Arbeitsgruppe junge DPG

AGjDPG 2: PhD Symposium: Magnon Plasmonics (jointly with MA)

AGjDPG 2.13: Poster

Dienstag, 1. April 2014, 15:01–15:45, HSZ 04

Magnonic grating coupler effect in a ferromagnetic thin film with a periodic array of embedded nanodisks — •Stefan Maendl, Florian Heimbach, Haiming Yu, and Dirk Grundler — Physik Department E10, TU München, Garching, Germany

Magnonics is a growing research field where one aims at controlling spin waves on the nanoscale. Microwave-to-magnon transducers are in particular important for coupling magnonic devices to conventional microwave circuits. It was found recently that the reciprocal-lattice vector provided by a periodic lattice of non-resonant magnetic nanodisks adds to the wave vector of a Damon-Eshbach mode that a coplanar wave guide induces in an underlying ferromagnetic thin film [1]. In the present work, we aim at optimizing this so-called grating-coupler effect for different material combinations, lattice constants, symmetries of the lattice and/or sizes of the nanodisks. We report our recent results. The work is supported by the DFG via GR1640/5 in SPP 1538 and NIM.

[1] H. Yu et al., Nat. Commun. 4, 2702 (2013)