Spin-density induced by electromagnetic wave in two-dimensional electron gas

Abstract

We consider the magnetic response of a two-dimensional electron gas (2DEG) with a spin-orbit interaction to a long-wave-length electromagnetic excitation. We observe that the transverse electric field creates spin polarization perpendicular to the 2DEG plane. The effect is more prominent in clean systems with resolved spin-orbit-split subbands, and reaches maximum when the frequency of the wave matches the subband splitting at the Fermi momentum. The relation of this effect to the spin-Hall effect is discussed.

Final published form

References in corpus (14)

• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Suppression of the Persistent Spin Hall Current by Defect Scattering
• Theory of Spin-Charge Coupled Transport in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interactions
• Spin-Hall conductivity due to Rashba spin-orbit interaction in disordered systems
• Spin-Orbit Coupling, Antilocalization, and Parallel Magnetic Fields in Quantum Dots
• Coherent wave-packet evolution in coupled bands
• Quasiclassical approach to the spin-Hall effect in the two-dimensional electron gas
• Electric Dipole Induced Spin Resonance in Disordered Semiconductors
• Spin susceptibilities, spin densities and their connection to spin-currents
• Spin Dynamics and Spin Transport
• Chiral spin resonance and spin-Hall conductivity in the presence of the electron-electron interactions
• Intrinsic Spin Hall Effect

Cited by in corpus (9)

• Dynamic spin-Hall effect and driven spin helix for linear spin-orbit interactions
• Resonant spin polarization and spin current in a two-dimensional electron gas
• Charge and spin density response functions of the clean two-dimensional electron gas with Rashba spin-orbit coupling at finite momenta and frequencies
• Crossover from diffusive to non-diffusive dynamics in the two-dimensional electron gas with Rashba spin-orbit coupling
• Spin-density induced by electromagnetic wave in two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit couplings
• Frequency- and transverse wave-vector-dependent spin Hall conductivity in two-dimensional electron gas with disorder
• Bulk Spin-Hall Effect
• Spin polarization control by electric stirring: proposal for a spintronic device
• Predicted signatures of the intrinsic spin Hall effect in closed systems