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

^*Corresponding author for this work

Physics of Nanodevices

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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)vertical bar 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
Number of pages	5
Journal	Journal of Physics D-Applied Physics
Volume	48
Issue number	2
DOIs	https://doi.org/10.1088/0022-3727/48/2/025001
Publication status	Published - 21-Jan-2015

Keywords

spin Hall effect
spin pumping
spin Seebeck effect
SEMICONDUCTORS
METALS

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Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayersFinal publisher's version, 1.83 MBLicence: Taverne

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Schreier, M., Bauer, G. E. W., Vasyuchka, V. I., Flipse, J., Uchida, K., 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 of Physics D-Applied Physics, 48(2), Article 025001. https://doi.org/10.1088/0022-3727/48/2/025001

@article{354ec55de8fe426ea1f9a5a15a6e313e,

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)vertical bar 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 pumping, spin Seebeck effect, SEMICONDUCTORS, METALS",

author = "Michael Schreier and Bauer, \{Gerrit E. W.\} and Vasyuchka, \{Vitaliy I.\} and Joost Flipse and Ken-ichi Uchida 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.\}",

year = "2015",

month = jan,

day = "21",

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

language = "English",

volume = "48",

journal = "Journal of Physics D-Applied Physics",

issn = "0022-3727",

publisher = "IoP Publishing",

number = "2",

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Schreier, M, Bauer, GEW, Vasyuchka, VI, Flipse, J, Uchida, K, 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 of 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)vertical bar 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)vertical bar 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 pumping

KW - spin Seebeck effect

KW - SEMICONDUCTORS

KW - METALS

U2 - 10.1088/0022-3727/48/2/025001

DO - 10.1088/0022-3727/48/2/025001

M3 - Article

SN - 0022-3727

VL - 48

JO - Journal of Physics D-Applied Physics

JF - Journal of 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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