Rashba Spin Interferometer

Details Rashba Spin Interferometer Rashba Spin Interferometer

2006-11-03

arxiv.org/abs/cond-mat/0611077v2

IEEE Trans. Magn. 43, 2869 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures, appears in the proceedings of the 10th Joint MMM/Intermag Conference

Scientific paper

10.1109/TMAG.2007.893417

A spin interferometer utilizing the Rashba effect is proposed. The novel design is composed of a one-dimensional (1D) straight wire and a 1D half-ring. By calculating the norm of the superposed wave function, we derive analytical expressions to describe the spin interference spectrum as a function of the Rashba coupling strength. Presented spin interference results are identified to include (i) the quantum-mechanical 4pi rotation effect, (ii) geometric effect, and (iii) Shubnikov-de Haas-like beating effect.

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