TY - JOUR
T1 - Photoinduced inverse spin-Hall effect
T2 - Conversion of light-polarization information into electric voltage
AU - Ando, K.
AU - Morikawa, M.
AU - Trypiniotis, T.
AU - Fujikawa, Y.
AU - Barnes, C. H.W.
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) from MEXT, Japan, Global COE Program “High-Level Global Cooperation for Leading-Edge Platform on Access Spaces (C12)” from MEXT, Japan, a Grant for Industrial Technology Research from NEDO, Japan, and Fundamental Research Grant from TRF, Japan. T.T. would like to express gratitude to JSPS for funding.
PY - 2010
Y1 - 2010
N2 - The photoinduced inverse spin-Hall effect was observed in a Pt/GaAs hybrid structure. In the GaAs layer, circularly polarized light generates spin-polarized carriers, inducing a pure spin current into the Pt layer through the interface. This pure spin current is, by the inverse spin-Hall effect in the Pt layer, converted into electric voltage. By changing the direction and ellipticity of the circularly polarized light, the electromotive force varies systematically, consistent with the prediction of the photoinduced inverse spin-Hall effect. The observed phenomenon allows the direct conversion of circular-polarization information into electric voltage; this phenomenon can be used as a spin photodetector.
AB - The photoinduced inverse spin-Hall effect was observed in a Pt/GaAs hybrid structure. In the GaAs layer, circularly polarized light generates spin-polarized carriers, inducing a pure spin current into the Pt layer through the interface. This pure spin current is, by the inverse spin-Hall effect in the Pt layer, converted into electric voltage. By changing the direction and ellipticity of the circularly polarized light, the electromotive force varies systematically, consistent with the prediction of the photoinduced inverse spin-Hall effect. The observed phenomenon allows the direct conversion of circular-polarization information into electric voltage; this phenomenon can be used as a spin photodetector.
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U2 - 10.1063/1.3327809
DO - 10.1063/1.3327809
M3 - Article
AN - SCOPUS:77749297970
SN - 0003-6951
VL - 96
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 8
M1 - 082502
ER -