Spin pumping in polycrystalline magnetic insulator/metal Pt films

Y. Kajiwara; K. Ando; H. Nakayama; R. Takahashi; E. Saitoh

doi:10.1109/TMAG.2011.2150737

Spin pumping in polycrystalline magnetic insulator/metal Pt films

Y. Kajiwara, K. Ando, H. Nakayama, R. Takahashi, E. Saitoh

Advanced Institute for Materials Research (AIMR)

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

7 Citations (Scopus)

Abstract

In this paper, we demonstrate the spin pumping, spin current generation from magnetization dynamics, at an interface between metal Pt and polycrystalline magnetic insulator Bi_xY_3-xFe ₅O₁₂ (x=0 and 1) prepared by the metal-organic decomposition method. We measured the electromotive force due to the inverse spin-Hall effect induced by the spin pumping in a polycrystalline Y ₃Fe₅O₁₂/Pt and a polycrystalline BiY ₂Fe₅O₁₂/Pt films. We found that spin mixing conductance estimated from the magnitude of the electromotive force for the BiY₂Fe₅O₁₂/Pt is much greater than that for the Y₃Fe₅O₁₂/Pt.

Original language	English
Article number	6027596
Pages (from-to)	2739-2742
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2150737
Publication status	Published - 2011 Oct

Keywords

Inverse spin-Hall effect
spin current
spin pumping
spintronics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2011.2150737

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title = "Spin pumping in polycrystalline magnetic insulator/metal Pt films",

abstract = "In this paper, we demonstrate the spin pumping, spin current generation from magnetization dynamics, at an interface between metal Pt and polycrystalline magnetic insulator BixY3-xFe 5O12 (x=0 and 1) prepared by the metal-organic decomposition method. We measured the electromotive force due to the inverse spin-Hall effect induced by the spin pumping in a polycrystalline Y 3Fe5O12/Pt and a polycrystalline BiY 2Fe5O12/Pt films. We found that spin mixing conductance estimated from the magnitude of the electromotive force for the BiY2Fe5O12/Pt is much greater than that for the Y3Fe5O12/Pt.",

keywords = "Inverse spin-Hall effect, spin current, spin pumping, spintronics",

author = "Y. Kajiwara and K. Ando and H. Nakayama and R. Takahashi and E. Saitoh",

note = "Funding Information: The authors thank K. Takanashi, T. Ishibashi, M. Mizuguchi, J. Ohe, H. Umezawa, and H. Kawai for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research in Priority Area {\textquoteleft}Creation and control of spin current{\textquoteright} (19048028), a Grant-in-Aid for Scientific Research A (21244058), Grant-in-Aid for JSPS Fellows, the global COE for the {\textquoteleft}Materials integration international centre of education and research{\textquoteright} all from MEXT, Japan, a Grant for Industrial Technology Research from NEDO, Japan, and Fundamental Research Grants from CREST-JST, PRESTO-JST, a Strategic Information and Communications R&D Promotion Program from MIC (102102001), and TRF, Japan.",

year = "2011",

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doi = "10.1109/TMAG.2011.2150737",

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AU - Kajiwara, Y.

AU - Ando, K.

AU - Nakayama, H.

AU - Takahashi, R.

AU - Saitoh, E.

N1 - Funding Information: The authors thank K. Takanashi, T. Ishibashi, M. Mizuguchi, J. Ohe, H. Umezawa, and H. Kawai for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research in Priority Area ‘Creation and control of spin current’ (19048028), a Grant-in-Aid for Scientific Research A (21244058), Grant-in-Aid for JSPS Fellows, the global COE for the ‘Materials integration international centre of education and research’ all from MEXT, Japan, a Grant for Industrial Technology Research from NEDO, Japan, and Fundamental Research Grants from CREST-JST, PRESTO-JST, a Strategic Information and Communications R&D Promotion Program from MIC (102102001), and TRF, Japan.

PY - 2011/10

Y1 - 2011/10

N2 - In this paper, we demonstrate the spin pumping, spin current generation from magnetization dynamics, at an interface between metal Pt and polycrystalline magnetic insulator BixY3-xFe 5O12 (x=0 and 1) prepared by the metal-organic decomposition method. We measured the electromotive force due to the inverse spin-Hall effect induced by the spin pumping in a polycrystalline Y 3Fe5O12/Pt and a polycrystalline BiY 2Fe5O12/Pt films. We found that spin mixing conductance estimated from the magnitude of the electromotive force for the BiY2Fe5O12/Pt is much greater than that for the Y3Fe5O12/Pt.

AB - In this paper, we demonstrate the spin pumping, spin current generation from magnetization dynamics, at an interface between metal Pt and polycrystalline magnetic insulator BixY3-xFe 5O12 (x=0 and 1) prepared by the metal-organic decomposition method. We measured the electromotive force due to the inverse spin-Hall effect induced by the spin pumping in a polycrystalline Y 3Fe5O12/Pt and a polycrystalline BiY 2Fe5O12/Pt films. We found that spin mixing conductance estimated from the magnitude of the electromotive force for the BiY2Fe5O12/Pt is much greater than that for the Y3Fe5O12/Pt.

KW - Inverse spin-Hall effect

KW - spin current

KW - spin pumping

KW - spintronics

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Spin pumping in polycrystalline magnetic insulator/metal Pt films

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