Spin Pumping from Rashba Spin-Orbit-Coupled Electron Systems Driven by Electric Dipole Spin Resonance

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概要

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• This paper analyzes spin currents pumped from Rashba spin-orbit coupled two-dimensional electron systems in electric dipole spin resonance (EDSR), on the basis of the nonequilibrium Green's function formalism. In the ballistic transport regime, the EDSR-induced spin pumping efficiently occurs for the finite-sized system smaller than the spin precession length. In the diffusive transport regime, the spin pumping is remarkably enhanced with increasing static disorder while the pumped spin dephases to a certain degree due to the D'yakonov-Perel' mechanism. The spin dephasing is controlled by reducing the system size compared with the precession length irrespective of the degree of disorder.

• 社団法人日本物理学会の論文
• 2008-03-15

著者

• Hattori Kiminori

  Osaka Univ. Osaka Jpn

• HATTORI Kiminori

  Department of Systems Innovation, Graduate School of Engineering Science, Osaka University

• Hattori Kiminori

  Department Of Systems Innovation Graduate School Of Engineering Science Osaka University

関連論文

• Spin Pumping from Rashba Spin-Orbit-Coupled Electron Systems Driven by Electric Dipole Spin Resonance
• Nonequilibrium Occupancy of Dangling Bond Defects in Undoped Amorphous Silicon Studied by Subgap-Light-Induced Electron Spin Resonance
• Spin-Current-Driven Spin Pumping in Rashba Spin-Orbit Coupled Systems : A Spin Torque Effect

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