Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography

Yuta Kainuma, Ryo Iguchi, Dwi Prananto, Vitaliy I. Vasyuchka, Burkard Hillebrands, Toshu An, Ken Ichi Uchida

Research output: Contribution to journalArticlepeer-review

Abstract

Lock-in thermography measurements were performed to reveal heat source distribution induced by the unidirectional spin-wave heat conveyer effect (USHCE) of magnetostatic surface spin waves. When the magnetostatic surface spin waves are excited in an yttrium iron garnet slab, the lock-in thermography images show spatially biased sharp and complicated heating patterns, indicating the importance of edge spin-wave dynamics for USHCE. The accessibility to the local heat emission properties allows us to clarify a capability of remote heating realized by USHCE; it can transfer energy for heating even through a macro-scale air gap between two magnetic materials owing to the long-range dipole-dipole coupling.

Original languageEnglish
Article number222404
JournalApplied Physics Letters
Volume118
Issue number22
DOIs
Publication statusPublished - 2021 May 31

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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