Generation of spin currents in the skyrmion phase of a helimagnetic insulator Cu2OSeO3

Daichi Hirobe, Yuki Shiomi, Yuhki Shimada, Jun Ichiro Ohe, Eiji Saitoh

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8 Citations (Scopus)

Abstract

We report spin-current generation related to skyrmion dynamics resonantly excited by a microwave in a helimagnetic insulator Cu2OSeO3. A Pt layer was fabricated on Cu2OSeO3 and voltage in the Pt layer was measured upon magnetic upon magnetic resonance of Cu2OSeO3 to electrically detect injected spin currents via the inverse spin Hall effect (ISHE) in Pt. We found that ISHE-induced electromotive forces appear in the skyrmion phase of Cu2OSeO3 as well as in the ferrimagnetic phase, which shows that magnetic skyrmions can contribute to the spin pumping effect.

Original languageEnglish
Article number053904
JournalJournal of Applied Physics
Volume117
Issue number5
DOIs
Publication statusPublished - 2015 Feb 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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