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Nonuniform Rashba-Dresselhaus spin precession along arbitrary paths

Ming-Hao Liu·Ching-Ray Chang
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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.

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Ming-Hao Liu, Ching-Ray Chang. 2006-11-03. Nonuniform Rashba-Dresselhaus spin precession along arbitrary paths. https://doi.org/10.1103/physrevb.74.195314

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