Resonant spin polarization and spin current in a two-dimensional electron gas

Abstract

We study the spin polarization and its associated spin-Hall current due to EDSR in disordered two-dimensional electron systems. We show that the disorder induced damping of the resonant spin polarization can be strongly reduced by an optimal field configuration that exploits the interference between Rashba and Dresselhaus spin-orbit interaction. This leads to a striking enhancement of the spin susceptibility while the spin-Hall current vanishes at the same time. We give an interpretation of the spin current in geometrical terms which are associated with the trajectories the polarization describes in spin space.

(5 pages), updated references, corrected typos

References in corpus (13)

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• Spin Accumulation in Diffusive Conductors with Rashba and Dresselhaus Spin-Orbit Interaction
• Optimal geometry of lateral GaAs and Si/SiGe quantum dots for electrical control of spin qubits
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• Spin control in semiconductor quantum wires
• Kinetics of spin coherence of electrons in $n$-type InAs quantum wells under intense terahertz laser fields
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• Mesoscopic fluctuations in the spin-electric susceptibility due to Rashba spin-orbit interaction
• Optical probing of spin dynamics of two-dimensional and bulk electrons in a GaAs/AlGaAs heterojunction system
• Electric field effect on electron gas spins in two-dimensional magnets with strong spin-orbit coupling
• Terahertz Spin-Light Coupling in Proximitized Dirac Materials