Nonuniform Rashba-Dresselhaus spin precession along arbitrary paths

Abstract

Electron spin precession in nonuniform Rashba-Dresselhaus two-dimensional electron systems along arbitrary continuous paths is investigated. We derive an analytical formula to describe the spin vectors (expectation values of the injected spin) in such conditions using a contour-integral method. The obtained formalism is capable of dealing with the nonuniformity of the Rashba spin-orbit field due to the inherent random distribution of the ionized dopants, and can be applied to curved one-dimensional quantum wires. Interesting examples are given, and the modification to the spin precession pattern in a Rashba-Dresselhaus channel when taking the random Rashba field into account is shown.

6 pages, 4 figures; derivations elaborated; to appear in Phys. Rev. B

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• Electric field-induced spin textures in a superlattice with Rashba and Dresselhaus spin-orbit coupling
• Spin and charge transport in U-shaped one-dimensional channels with spin-orbit couplings
• Curvature induced out of plane spin accumulation
• Local spin density in two-dimensional electron gas with hexagonal boundary
• Rashba Spin Interferometer
• Spin Distribution in Diffraction Pattern of Two-dimensional Electron Gas with Spin-orbit Coupling