Magnetoconductivity in the presence of Bychkov-Rashba spin-orbit interaction

Abstract

A closed-form analytic formula for the magnetoconductivity in the diffusive regime is derived in the presence of Bychkov-Rashba spin-orbit interaction in two dimensions. It is shown that at low fields B << B_{so}, where B_{so} is the characteristic field associated with spin precession, D'yakonov-Perel' mechanism leads to spin relaxation, while for B >> B_{so} spin relaxation is suppressed and the resulting spin precession contributes a Berry phase-like spin phase to the magnetoconductivity. The relative simplicity of the formula greatly facilitates data fitting, allowing for the strength of the spin-orbit coupling to be easily extracted.

References in corpus (5)

• Gate-Controlled Spin-Orbit Quantum Interference Effects in Lateral Transport
• Weak Antilocalization and Spin Precession in Quantum Wells
• Spin-orbit coupling effects on quantum transport in lateral semiconductor dots
• Conduction band spin splitting and negative magnetoresistance in ${\mathrm{A}}_3{\mathrm{B}}_5$ heterostructures
• Weak antilocalization in high-mobility two-dimensional systems

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• Closed-form weak localization magnetoconductivity in quantum wells with arbitrary Rashba and Dresselhaus spin-orbit interactions
• The mechanism of spin-orbit coupling in a 2D oxide interface
• Spin-selective localization due to intrinsic spin-orbit coupling
• Theory of weak localization in graphene with spin-orbit interaction
• Low temperature magnetoresistance of (111) (La${}_{0.3}$Sr${}_{0.7}$)(Al${}_{0.65}$Ta${}_{0.35}$)/SrTiO${}_3$
• Weak localization at arbitrary disorder strength in systems with generic spin-dependent fields
• δ-doped LaAlO3-SrTiO3 interface: Electrical transport and characterization of the interface potential
• Spin polarization direction switch based on an asymmetrical quantum wire
• Interplay of Rashba and valley-Zeeman splittings in weak localization of spin-orbit coupled graphene