Electronic and spin properties of Rashba billiards

Details Electronic and spin properties of Rashba billiards Electronic and spin properties of Rashba billiards

2004-07-09

arxiv.org/abs/cond-mat/0407247v1

Physical Review B 70, 233307 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevB.70.233307

Ballistic electrons confined to a billiard and subject to spin--orbit coupling of the Rashba type are investigated, using both approximate semiclassical and exact quantum--mechanical methods. We focus on the low--energy part of the spectrum that has negative eigenvalues. When the spin precession length is smaller than the radius of the billiard, the low--lying energy eigenvalues turn out to be well described semiclassically. Corresponding eigenspinors are found to have a finite spin polarization in the direction perpendicular to the billiard plane.

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