Forward volume and surface magnetostatic modes in an yttrium iron garnet film for out-of-plane magnetic fields: Theory and experiment

Jinho Lim*, Wonbae Bang, Jonathan Trossman, Dovran Amanov, John B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

We present experimental and theoretical results on the propagation of magnetostatic spin waves in a film of yttrium iron garnet (YIG) for out-of-plane magnetic fields for which propagation in opposite directions is nonreciprocal in the presence of a metal layer. The plane studied is defined by the film normal n and n × k where k is the wave vector of the mode. Spin waves in this setting are classified as forward volume waves or surface waves and display non-reciprocity in the presence of an adjacent metal layer except for when H//n. The measurements are carried out in a transmission geometry, and a microwave mixer is used to measure the change of phase, and with it the evolution of wavevector, of the arriving spin wave with external magnetic field.

Original languageEnglish (US)
Article number056018
JournalAIP Advances
Volume8
Issue number5
DOIs
StatePublished - May 1 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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