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Experimental Observation of the Inverse Spin Hall Effect at Room Temperature.

DE2010973794

Publication Date	2010
Personal Author	Liu, B.; Shi, J.; Wang, W.; Zhao, H.; Li, D.; Zhang, S.; Xue, Q.; Chen, D.
Page Count	5
Abstract	We observe the inverse spin Hall effect in a two-dimensional electron gas confined in Al-GaAs/InGaAs quantum wells. Specifically, they find that an inhomogeneous spin density induced by the optical injection gives rise to an electric current transverse to both the spin polarization and its gradient. The spin Hall conductivity can be inferred from such a measurement through the Einstein relation and the onsager relation, and is found to have the order of magnitude of 0.5(e(sup 2)/h). The observation is made at the room temperature and in samples with macroscopic sizes, suggesting that the inverse spin Hall effects is a robust macroscopic transport phenomenon.
Keywords	Spin Hall effect Electron gas Quantum wells Electric currents Onsager relations Polarization Ambient temperature Aluminium Gallium arsenides Indium arsenides
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Beijing (China). National Lab. for Condensed Matter Physics.; Stanford Univ., CA. Dept. of Physics.; Department of Energy, Washington, DC.; Chinese Academy of Sciences, Beijing. Inst. of Physics.; Chinese Academy of Sciences, Beijing. International Center for Quantum
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201021
Contract Number	DE-AC02-76SF00515

Experimental Observation of the Inverse Spin Hall Effect at Room Temperature.

Experimental Observation of the Inverse Spin Hall Effect at Room Temperature.
DE2010973794

Publication Date	2010
Personal Author	Liu, B.; Shi, J.; Wang, W.; Zhao, H.; Li, D.; Zhang, S.; Xue, Q.; Chen, D.
Page Count	5
Abstract	We observe the inverse spin Hall effect in a two-dimensional electron gas confined in Al-GaAs/InGaAs quantum wells. Specifically, they find that an inhomogeneous spin density induced by the optical injection gives rise to an electric current transverse to both the spin polarization and its gradient. The spin Hall conductivity can be inferred from such a measurement through the Einstein relation and the onsager relation, and is found to have the order of magnitude of 0.5(e(sup 2)/h). The observation is made at the room temperature and in samples with macroscopic sizes, suggesting that the inverse spin Hall effects is a robust macroscopic transport phenomenon.
Keywords	Spin Hall effect Electron gas Quantum wells Electric currents Onsager relations Polarization Ambient temperature Aluminium Gallium arsenides Indium arsenides
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Beijing (China). National Lab. for Condensed Matter Physics.; Stanford Univ., CA. Dept. of Physics.; Department of Energy, Washington, DC.; Chinese Academy of Sciences, Beijing. Inst. of Physics.; Chinese Academy of Sciences, Beijing. International Center for Quantum
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201021
Contract Number	DE-AC02-76SF00515