Spin pumping due to spin waves in magnetic vortex structure

Norinobu Hasegawa, Kouta Kondou, Motoi Kimata, Yoshi Chika Otani

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We performed spin pumping into a Pt wire by using various spin-wave modes excited in a magnetic vortex structure. Radial and azimuthal modes were excited by applying an in-plane radiofrequency magnetic field with a variable frequency. We observed a mode-dependent sign change in the inverse spin Hall voltage induced along the Pt wire. Micromagnetic simulation revealed that the observed behavior reflected the spatial distribution of the spin wave. These findings suggest that spin pumping can be used for the electrical detection of the spatial distribution of confined spin-wave modes in small magnetic structures.

Original languageEnglish
Article number053002
JournalApplied Physics Express
Volume10
Issue number5
DOIs
Publication statusPublished - 2017 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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