Phonon-limited mobility in two-dimensional semiconductors with spin-orbit

Authors

Lei Chen, Peking University
Zhongshui Ma, Peking UniversityFollow
J. C. Cao, Chinese Academy of Science
T. Y. Zhang, Chinese Academy of Science
Chao Zhang, University of WollongongFollow

RIS ID

20161

Publication Details

Chen, L., Ma, Z., Cao, J., Zhang, T. Y. & Zhang, C. (2007). Phonon-limited mobility in two-dimensional semiconductors with spin-orbit. Applied Physics Letters, 91 (10), 102115-1-102115-3.

Abstract

The authors demonstrate that the Rashba spin-orbit interaction in low-dimensional semiconductorscan enhance or reduce the electron-phonon scattering rate by as much as 25%. The underlyingmechanism is that the electron-phonon scattering phase space for the upper (lower) Rashba band issignificantly enhanced (suppressed) by the spin-orbit interaction. While the scattering timedecreases for the upper level, the mobility of the level increases due to an additional term in theelectron velocity.