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Title: Spin-wave wavelength down-conversion at thickness steps
Authors: Stigloher, Johannes
Taniguchi, Takuya
Madami, Marco
Decker, Martin
Koerner, Helmut S.
Moriyama, Takahiro  kyouindb  KAKEN_id  orcid (unconfirmed)
Gubbiotti, Gianluca
Ono, Teruo  kyouindb  KAKEN_id
Back, Christian H.
Author's alias: 谷口, 卓也
森山, 貴広
小野, 輝男
Issue Date: May-2018
Publisher: Japan Society of Applied Physics
Journal title: Applied Physics Express
Volume: 11
Issue: 5
Thesis number: 053002
Abstract: We report a systematic experimental study on the refraction and reflection of magnetostatic spin-waves at a thickness step between two Permalloy films of different thickness. The transmitted spin-waves for the transition from a thick film to a thin film have a higher wave vector compared to the incoming waves. Consequently, such systems may find use as passive wavelength transformers in magnonic networks. We investigate the spin-wave transmission behavior by studying the influence of the external magnetic field, incident angle, and thickness ratio of the films using time-resolved scanning Kerr microscopy and micro-focused Brillouin light scattering.
Rights: © 2018 The Japan Society of Applied Physics. Content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
DOI(Published Version): 10.7567/APEX.11.053002
Appears in Collections:Journal Articles

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