Spin Hall effect and Nernst effect in FePt/Au multi-terminal devices with different Au thicknesses

T. Seki; I. Sugai; Y. Hasegawa; S. Mitani; K. Takanashi

doi:10.1016/j.ssc.2009.11.018

Spin Hall effect and Nernst effect in FePt/Au multi-terminal devices with different Au thicknesses

T. Seki, I. Sugai, Y. Hasegawa, S. Mitani, K. Takanashi

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

39 Citations (Scopus)

Abstract

The spin-Hall effect and the Nernst effect were investigated in multi-terminal devices consisting of an FePt perpendicular spin polarizer and a Au Hall cross with different Au thicknesses. As the thickness of the Au Hall cross increased from 10 nm to 20 nm, the spin-Hall angle (α_H) was significantly reduced. The significant reduction of the spin-Hall angle indicates that the interface and/or surface scattering of the electron spins play a crucial role for the large α_H. The voltage change due to the Nernst effect also decreased with increasing the thickness of the Au Hall cross.

Original language	English
Pages (from-to)	496-499
Number of pages	4
Journal	Solid State Communications
Volume	150
Issue number	11-12
DOIs	https://doi.org/10.1016/j.ssc.2009.11.018
Publication status	Published - 2010 Mar

Keywords

A. Gold
D. Nernst effect
D. Perpendicular magnetization
D. Spin Hall effect

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2009.11.018

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title = "Spin Hall effect and Nernst effect in FePt/Au multi-terminal devices with different Au thicknesses",

abstract = "The spin-Hall effect and the Nernst effect were investigated in multi-terminal devices consisting of an FePt perpendicular spin polarizer and a Au Hall cross with different Au thicknesses. As the thickness of the Au Hall cross increased from 10 nm to 20 nm, the spin-Hall angle (αH) was significantly reduced. The significant reduction of the spin-Hall angle indicates that the interface and/or surface scattering of the electron spins play a crucial role for the large αH. The voltage change due to the Nernst effect also decreased with increasing the thickness of the Au Hall cross.",

keywords = "A. Gold, D. Nernst effect, D. Perpendicular magnetization, D. Spin Hall effect",

author = "T. Seki and I. Sugai and Y. Hasegawa and S. Mitani and K. Takanashi",

note = "Funding Information: This work was partly supported by a Grant-in-Aid for Scientific Research in Priority Area “Creation and control of spin current” from MEXT. The authors thank Prof. S. Maekawa, Dr. S. Takahashi, Prof. G.E.W. Bauer, and the late Dr. M. Hatami for their fruitful discussion.",

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doi = "10.1016/j.ssc.2009.11.018",

language = "English",

volume = "150",

pages = "496--499",

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T1 - Spin Hall effect and Nernst effect in FePt/Au multi-terminal devices with different Au thicknesses

AU - Seki, T.

AU - Sugai, I.

AU - Hasegawa, Y.

AU - Mitani, S.

AU - Takanashi, K.

N1 - Funding Information: This work was partly supported by a Grant-in-Aid for Scientific Research in Priority Area “Creation and control of spin current” from MEXT. The authors thank Prof. S. Maekawa, Dr. S. Takahashi, Prof. G.E.W. Bauer, and the late Dr. M. Hatami for their fruitful discussion.

PY - 2010/3

Y1 - 2010/3

N2 - The spin-Hall effect and the Nernst effect were investigated in multi-terminal devices consisting of an FePt perpendicular spin polarizer and a Au Hall cross with different Au thicknesses. As the thickness of the Au Hall cross increased from 10 nm to 20 nm, the spin-Hall angle (αH) was significantly reduced. The significant reduction of the spin-Hall angle indicates that the interface and/or surface scattering of the electron spins play a crucial role for the large αH. The voltage change due to the Nernst effect also decreased with increasing the thickness of the Au Hall cross.

AB - The spin-Hall effect and the Nernst effect were investigated in multi-terminal devices consisting of an FePt perpendicular spin polarizer and a Au Hall cross with different Au thicknesses. As the thickness of the Au Hall cross increased from 10 nm to 20 nm, the spin-Hall angle (αH) was significantly reduced. The significant reduction of the spin-Hall angle indicates that the interface and/or surface scattering of the electron spins play a crucial role for the large αH. The voltage change due to the Nernst effect also decreased with increasing the thickness of the Au Hall cross.

KW - A. Gold

KW - D. Nernst effect

KW - D. Perpendicular magnetization

KW - D. Spin Hall effect

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DO - 10.1016/j.ssc.2009.11.018

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SN - 0038-1098

VL - 150

SP - 496

EP - 499

JO - Solid State Communications

JF - Solid State Communications

IS - 11-12

ER -

Spin Hall effect and Nernst effect in FePt/Au multi-terminal devices with different Au thicknesses

Abstract

Keywords

ASJC Scopus subject areas

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