Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers

Michael Schreier; Gerrit E.W. Bauer; Vitaliy I. Vasyuchka; Joost Flipse; Ken Ichi Uchida; Johannes Lotze; Viktor Lauer; Andrii V. Chumak; Alexander A. Serga; Shunsuke Daimon; Takashi Kikkawa; Eiji Saitoh; Bart J. Van Wees; Burkard Hillebrands; Rudolf Gross; Sebastian T.B. Goennenwein

doi:10.1088/0022-3727/48/2/025001

Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers

Michael Schreier, Gerrit E.W. Bauer, Vitaliy I. Vasyuchka, Joost Flipse, Ken Ichi Uchida, Johannes Lotze, Viktor Lauer, Andrii V. Chumak, Alexander A. Serga, Shunsuke Daimon, Takashi Kikkawa, Eiji Saitoh, Bart J. Van Wees, Burkard Hillebrands, Rudolf Gross, Sebastian T.B. Goennenwein

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

55 Citations (Scopus)

Abstract

We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.

Original language	English
Article number	025001
Journal	Journal Physics D: Applied Physics
Volume	48
Issue number	2
DOIs	https://doi.org/10.1088/0022-3727/48/2/025001
Publication status	Published - 2015 Jan 21

Keywords

Spin Hall effect
Spin Seebeck effect
Spin pumping

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10.1088/0022-3727/48/2/025001

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Schreier, M., Bauer, G. E. W., Vasyuchka, V. I., Flipse, J., Uchida, K. I., Lotze, J., Lauer, V., Chumak, A. V., Serga, A. A., Daimon, S., Kikkawa, T., Saitoh, E., Van Wees, B. J., Hillebrands, B., Gross, R., & Goennenwein, S. T. B. (2015). Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers. Journal Physics D: Applied Physics, 48(2), Article 025001. https://doi.org/10.1088/0022-3727/48/2/025001

@article{bd3d3061f1ae4969b87a83b96c94f5f5,

title = "Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers",

abstract = "We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.",

keywords = "Spin Hall effect, Spin Seebeck effect, Spin pumping",

author = "Michael Schreier and Bauer, {Gerrit E.W.} and Vasyuchka, {Vitaliy I.} and Joost Flipse and Uchida, {Ken Ichi} and Johannes Lotze and Viktor Lauer and Chumak, {Andrii V.} and Serga, {Alexander A.} and Shunsuke Daimon and Takashi Kikkawa and Eiji Saitoh and {Van Wees}, {Bart J.} and Burkard Hillebrands and Rudolf Gross and Goennenwein, {Sebastian T.B.}",

note = "Publisher Copyright: {\textcopyright} 2015 IOP Publishing Ltd.",

year = "2015",

month = jan,

day = "21",

doi = "10.1088/0022-3727/48/2/025001",

language = "English",

volume = "48",

journal = "Journal Physics D: Applied Physics",

issn = "0022-3727",

publisher = "IOP Publishing Ltd.",

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Schreier, M, Bauer, GEW, Vasyuchka, VI, Flipse, J, Uchida, KI, Lotze, J, Lauer, V, Chumak, AV, Serga, AA, Daimon, S, Kikkawa, T, Saitoh, E, Van Wees, BJ, Hillebrands, B, Gross, R & Goennenwein, STB 2015, 'Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers', Journal Physics D: Applied Physics, vol. 48, no. 2, 025001. https://doi.org/10.1088/0022-3727/48/2/025001

TY - JOUR

T1 - Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers

AU - Schreier, Michael

AU - Bauer, Gerrit E.W.

AU - Vasyuchka, Vitaliy I.

AU - Flipse, Joost

AU - Uchida, Ken Ichi

AU - Lotze, Johannes

AU - Lauer, Viktor

AU - Chumak, Andrii V.

AU - Serga, Alexander A.

AU - Daimon, Shunsuke

AU - Kikkawa, Takashi

AU - Saitoh, Eiji

AU - Van Wees, Bart J.

AU - Hillebrands, Burkard

AU - Gross, Rudolf

AU - Goennenwein, Sebastian T.B.

PY - 2015/1/21

Y1 - 2015/1/21

N2 - We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.

AB - We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.

KW - Spin Hall effect

KW - Spin Seebeck effect

KW - Spin pumping

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SN - 0022-3727

VL - 48

JO - Journal Physics D: Applied Physics

JF - Journal Physics D: Applied Physics

IS - 2

M1 - 025001

ER -

Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers

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