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

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

doi:10.1063/1.4907040

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

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

Research output: Contribution to journal › Article › peer-review

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 language	English
Article number	053904
Journal	Journal of Applied Physics
Volume	117
Issue number	5
DOIs	https://doi.org/10.1063/1.4907040
Publication status	Published - 2015 Feb 7

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Generation of spin currents in the skyrmion phase of a helimagnetic insulator Cu2OSeO3",

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.",

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T1 - Generation of spin currents in the skyrmion phase of a helimagnetic insulator Cu2OSeO3

AU - Hirobe, Daichi

AU - Shiomi, Yuki

AU - Shimada, Yuhki

AU - Ohe, Jun Ichiro

AU - Saitoh, Eiji

PY - 2015/2/7

Y1 - 2015/2/7

N2 - 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.

AB - 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.

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