Thermal imaging of standing spin waves

T. An, K. Yamaguchi, K. Uchida, E. Saitoh

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A simple method for the spatial imaging of standing spin-wave modes is demonstrated. We observed instantaneous temperature-rise images on a polycrystalline ferrimagnetic insulator Y3Fe5O 12 slab using an infrared camera immediately after exciting magnetostatic standing spin-wave modes. We found that a wavy temperature distribution appears before the temperature distribution on the sample is smoothed by heat conduction. The distribution is consistent with the result of a calculation based on the Landau-Lifshitz-Gilbert equation using the effective demagnetization coefficient of the slab. This result proves that the method can image the spatially distributed patterns of standing spin waves.

Original languageEnglish
Article number052410
JournalApplied Physics Letters
Volume103
Issue number5
DOIs
Publication statusPublished - 2013 Jul 29

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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