Universality of the spin pumping in metallic bilayer films

T. Yoshino; K. Ando; K. Harii; H. Nakayama; Y. Kajiwara; E. Saitoh

doi:10.1063/1.3571556

Universality of the spin pumping in metallic bilayer films

T. Yoshino, K. Ando, K. Harii, H. Nakayama, Y. Kajiwara, E. Saitoh

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

31 Citations (Scopus)

Abstract

We show a clear guideline for generating a large spin current using the spin pumping in metallic bilayer films. We measured spin currents generated by the spin pumping in Ni_1-x Fe_x /Pt bilayer films using the inverse spin-Hall effect (ISHE). The magnitude of the ISHE signals are well reproduced by a calculation based on the model of the spin pumping. The result shows that the amplitude of a spin current is universally determined by the product of the saturation magnetization, the additional damping constant, and the solid angle of the magnetization precession.

Original language	English
Article number	132503
Journal	Applied Physics Letters
Volume	98
Issue number	13
DOIs	https://doi.org/10.1063/1.3571556
Publication status	Published - 2011 Mar 28
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Universality of the spin pumping in metallic bilayer films",

abstract = "We show a clear guideline for generating a large spin current using the spin pumping in metallic bilayer films. We measured spin currents generated by the spin pumping in Ni1-x Fex /Pt bilayer films using the inverse spin-Hall effect (ISHE). The magnitude of the ISHE signals are well reproduced by a calculation based on the model of the spin pumping. The result shows that the amplitude of a spin current is universally determined by the product of the saturation magnetization, the additional damping constant, and the solid angle of the magnetization precession.",

author = "T. Yoshino and K. Ando and K. Harii and H. Nakayama and Y. Kajiwara and E. Saitoh",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research in Priority Area “Creation and control of spin current” (Grant No. 19048028) from MEXT, Japan, a Grant-in-Aid for Scientific Research (A) (Grant No. 21244058) from MEXT, Japan, a Grant-in-Aid for Research Activity Start-up (Grant No. 2284005) from MEXT, Japan, a Strategic Information and Communications R&D Promotion Program from MIC (Grant No. 102102001), Japan, the Sumitomo Foundation, Japan, a Grant for Industrial Technology Research from NEDO, Japan, and Fundamental Research Grant from TRF, Japan. ",

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doi = "10.1063/1.3571556",

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T1 - Universality of the spin pumping in metallic bilayer films

AU - Yoshino, T.

AU - Ando, K.

AU - Harii, K.

AU - Nakayama, H.

AU - Kajiwara, Y.

AU - Saitoh, E.

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research in Priority Area “Creation and control of spin current” (Grant No. 19048028) from MEXT, Japan, a Grant-in-Aid for Scientific Research (A) (Grant No. 21244058) from MEXT, Japan, a Grant-in-Aid for Research Activity Start-up (Grant No. 2284005) from MEXT, Japan, a Strategic Information and Communications R&D Promotion Program from MIC (Grant No. 102102001), Japan, the Sumitomo Foundation, Japan, a Grant for Industrial Technology Research from NEDO, Japan, and Fundamental Research Grant from TRF, Japan.

PY - 2011/3/28

Y1 - 2011/3/28

N2 - We show a clear guideline for generating a large spin current using the spin pumping in metallic bilayer films. We measured spin currents generated by the spin pumping in Ni1-x Fex /Pt bilayer films using the inverse spin-Hall effect (ISHE). The magnitude of the ISHE signals are well reproduced by a calculation based on the model of the spin pumping. The result shows that the amplitude of a spin current is universally determined by the product of the saturation magnetization, the additional damping constant, and the solid angle of the magnetization precession.

AB - We show a clear guideline for generating a large spin current using the spin pumping in metallic bilayer films. We measured spin currents generated by the spin pumping in Ni1-x Fex /Pt bilayer films using the inverse spin-Hall effect (ISHE). The magnitude of the ISHE signals are well reproduced by a calculation based on the model of the spin pumping. The result shows that the amplitude of a spin current is universally determined by the product of the saturation magnetization, the additional damping constant, and the solid angle of the magnetization precession.

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Universality of the spin pumping in metallic bilayer films

Abstract

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