Spin pumping due to spin waves in magnetic vortex structure

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

doi:10.7567/APEX.10.053002

Spin pumping due to spin waves in magnetic vortex structure

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

IMR - Materials Property Division

Research output: Contribution to journal › Article › peer-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 language	English
Article number	053002
Journal	Applied Physics Express
Volume	10
Issue number	5
DOIs	https://doi.org/10.7567/APEX.10.053002
Publication status	Published - 2017 May

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title = "Spin pumping due to spin waves in magnetic vortex structure",

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.",

author = "Norinobu Hasegawa and Kouta Kondou and Motoi Kimata and Otani, {Yoshi Chika}",

note = "Publisher Copyright: {\textcopyright} 2017 The Japan Society of Applied Physics.",

year = "2017",

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journal = "Applied Physics Express",

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AU - Hasegawa, Norinobu

AU - Kondou, Kouta

AU - Kimata, Motoi

AU - Otani, Yoshi Chika

PY - 2017/5

Y1 - 2017/5

N2 - 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.

AB - 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.

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JO - Applied Physics Express

JF - Applied Physics Express

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ER -

Spin pumping due to spin waves in magnetic vortex structure

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