Electron spin precession in semiconductor quantum wires with Rashba spin-orbit coupling

Details Electron spin precession in semiconductor quantum wires with Rashba spin-orbit coupling Electron spin precession in semiconductor quantum wires with Rashba spin-orbit coupling

2003-04-16

arxiv.org/abs/cond-mat/0304372v1

Eur. Phys. J. B 34, 359-365 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 9 figures

Scientific paper

10.1140/epjb/e2003-00232-2

The influence of the Rashba spin-orbit coupling on the electron spin dynamics is investigated for a ballistic semiconductor quantum wire with a finite width. We monitor the spin evolution using the time-dependent Schr\"odinger equation. The pure spin precession characteristic of the 1D limit is lost in a 2D wire with a finite lateral width. In general, the time evolution in the latter case is characterized by several frequencies and a nonrigid spin motion.

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