Universal Rashba Spin Precession of Two-Dimensional Electrons and Holes

Abstract

We study spin precession due to Rashba spin splitting of electrons and holes in semiconductor quantum wells. Based on a simple analytical expression that we derive for the current modulation in a broad class of experimental situations of ferromagnet/nonmagnetic semiconductor/ferromagnet hybrid structures, we conclude that the Datta-Das spin transistor (i) is feasible with holes and (ii) its functionality is not affected by integration over injection angles. The current modulation shows a universal oscillation period, irrespective of the different forms of the Rashba Hamiltonian for electrons and holes. The analytic formulas approximate extremely well exact numerical calculations of a more elaborate Kohn--Luttinger model.

arXiv comment7 pages, 2 eps figures included, minor changes

References in corpus (10)

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• Non-ballistic spin field-effect transistor
• Ballistic spin-polarized transport and Rashba spin precession in semiconductor nanowires
• Rashba spin splitting in two-dimensional electron and hole systems
• Spin Accumulation in Quantum Wires with Strong Rashba Spin-Orbit Coupling
• Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons
• Anomalous Rashba spin splitting in two-dimensional hole systems
• Datta-Das transistor with enhanced spin control
• Filtering spin with tunnel-coupled electron wave guides
• Rashba precession in quantum wires with interaction

Cited by in corpus (15)

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• Spin polarization of electrons with Rashba double-refraction
• Shot noise and spin-orbit coherent control of entangled and spin polarized electrons
• Voltage controlled spin precession
• Thermoelectric effects in graphene with local spin-orbit interaction
• Rashba spin precession in quantum Hall edge channels
• Multichannel effects in Rashba quantum wires
• Interference of heavy holes in an Aharonov-Bohm ring
• Interplay between resonant tunneling and spin precession oscillations in all-electric all-semiconductor spin transistors
• Revisit the spin-FET: Multiple reflections, inelastic scattering, and lateral size effects
• Controlled rotation of electrically injected spins in a non-ballistic spin field-effect transistor
• Conductance oscillations of a spin-orbit stripe with polarized contacts
• Voltage controlled spin precession in InAs quantum wells
• The spin-double refraction in two-dimensional electron gas