Generation of spin currents in the skyrmion phase of a helimagnetic insulator Cu{sub 2}OSeO{sub 3}

Journal Article · Sat Feb 07 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4907040· OSTI ID:22413037

Hirobe, Daichi; Shiomi, Yuki ^[1]; Shimada, Yuhki; Ohe, Jun-ichiro ^[2]; Saitoh, Eiji ^[1]

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1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
2. Department of Physics, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510 (Japan)

We report spin-current generation related to skyrmion dynamics resonantly excited by a microwave in a helimagnetic insulator Cu{sub 2}OSeO{sub 3}. A Pt layer was fabricated on Cu{sub 2}OSeO{sub 3} and voltage in the Pt layer was measured upon magnetic upon magnetic resonance of Cu{sub 2}OSeO{sub 3} 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 Cu{sub 2}OSeO{sub 3} as well as in the ferrimagnetic phase, which shows that magnetic skyrmions can contribute to the spin pumping effect.

• OSTI ID: 22413037
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER OXIDES
DIELECTRIC MATERIALS
ELECTRIC POTENTIAL
ELECTROMOTIVE FORCE
FERRIMAGNETIC MATERIALS
FERRIMAGNETISM
HALL EFFECT
LAYERS
MAGNETIC RESONANCE
MICROWAVE RADIATION
PLATINUM
SELENATES
SKYRME POTENTIAL
SOLITONS
SPIN