Spin Accumulation in Quantum Wires with Strong Rashba Spin-Orbit Coupling

Details Spin Accumulation in Quantum Wires with Strong Rashba Spin-Orbit Coupling Spin Accumulation in Quantum Wires with Strong Rashba Spin-Orbit Coupling

2002-01-11

arxiv.org/abs/cond-mat/0201164v2

Phys. Rev. B 66, 073311 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, expanded discussion of spin accumulation

Scientific paper

10.1103/PhysRevB.66.073311

We present analytical and numerical results for the effect of Rashba spin-orbit coupling on band structure, transport, and interaction effects in quantum wires when the spin precession length is comparable to the wire width. In contrast to the weak-coupling case, no common spin-quantization axis can be defined for eigenstates within a single-electron band. The situation with only the lowest spin-split subbands occupied is particularly interesting because electrons close to Fermi points of the same chirality can have approximately parallel spins. We discuss consequences for spin-dependent transport and effective Tomonaga-Luttinger descriptions of interactions in the quantum wire.

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