Spin polarization oscillations without spin precession: spin-orbit entangled resonances in quasi-one-dimensional spin transport

Abstract

Resonant behavior involving spin-orbit entangled states occurs for spin transport along a narrow channel defined in a two-dimensional electron gas, including an apparent rapid relaxation of the spin polarization for special values of the channel width and applied magnetic field (so-called ballistic spin resonance). A fully quantum mechanical theory for transport through multiple subbands of the one-dimensional system provides the dependence of the spin transport on the applied magnetic field and channel width, including a resonant depolarization of spins when the Zeeman energy matches the subband energy splittings and a spin texture transverse to the magnetic field. The resonance phenomenon is robust to disorder.

13 pages, 8 figures

References in corpus (9)

• Suppression of Spin Relaxation in Submicron InGaAs Wires
• Performance of a spin-based insulated gate field effect transistor
• Ballistic Spin Resonance
• Electrical generation of pure spin currents in a two-dimensional electron gas
• Electrical initialization and manipulation of electron spins in an L-shaped strained n-InGaAs channel
• Spin relaxation in narrow wires of a two-dimensional electron gas
• Long-Lived Spin Coherence States
• Semiclassical path integral approach on spin relaxations in narrow wires
• Ballistic spin resonance in multisubband quantum wires

Cited by in corpus (5)

• Floquet-Drude conductivity
• Ballistic spin resonance in multisubband quantum wires
• Effects of interaction on field-induced resonances in confined Fermi liquid
• Kinetic theory of spin-polarized systems in electric and magnetic fields with spin-orbit coupling: II. RPA response functions and collective modes
• Thermalization of dipole oscillations in confined systems by rare collisions