Generalized path integral method for Elliott-Yafet spin relaxations in quantum wells and narrow wires

Jengjan Tsai*, Cheng-Hung Chang

*此作品的通信作者

研究成果: Article同行評審

摘要

We generalized the semiclassical path integral method originally used in the DyakonovPerel mechanism to study the spin relaxation of the ElliottYafet mechanism in low-dimensional systems. In quantum wells, the spin properties calculated by this method confirmed the experimental results. In two-dimensional narrow wires, size and impurity effects on the ElliottYafet relaxation were predicted, including the wire-width-dependent relaxation time, the polarization evolution on the sample boundaries, and the relaxation behavior during the diffusiveballistic transition. These properties were compared with those of the DyakonovPerel relaxation calculated under similar conditions. For ballistic narrow wires, we derived an exact relation between the ElliottYafet relaxation time and the wire width, which confirmed the above simulations.

原文English
文章編號075801
期刊Journal of Physics Condensed Matter
24
發行號7
DOIs
出版狀態Published - 22 二月 2012

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