Semiclassical path integral approach for spin relaxations in narrow wires

Cheng-Hung Chang*, Jengjan Tsai, Hui Fen Lo, A. G. Mal'Shukov


研究成果: Article同行評審

14 引文 斯高帕斯(Scopus)


The semiclassical path integral (SPI) method has been applied for studying spin relaxation in a narrow two-dimensional strip with the Rashba spin-orbit interaction. Our numerical calculations show good agreement with the experimental data, although some features of experimental results are not clear yet. We also calculated the relaxation of a uniform spin-density distribution in the ballistic regime of very narrow wires. With the decreasing wire width, the spin polarization exhibits a transition from the exponential decay to the oscillatory Bessel-type relaxation. The SPI method has also been employed to calculate the relaxation of the particularly long-lived helix mode. Good agreement has been found with calculations based on the diffusion theory.

期刊Physical Review B - Condensed Matter and Materials Physics
出版狀態Published - 3 3月 2009


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