Optical Spin Orientation under Inter- and Intra-Subband Transitions in QWs
凝聚态物理
2007-05-23 v1
摘要
It is shown that absorption of circularly polarized infrared radiation achieved by inter-subband and intra-subband (Drude-like) transitions results in a monopolar spin orientation of free carriers. The monopolar spin polarization in zinc-blende-based quantum wells (QWs) is demonstrated by the observation of the spin-galvanic and circular photogalvanic effects. It is shown that monopolar spin orientation in n-type QWs becomes possible if an admixture of valence band states to the conduction band wave function and the spin-orbit splitting of the valence band are taken into account.
引用
@article{arxiv.cond-mat/0301388,
title = {Optical Spin Orientation under Inter- and Intra-Subband Transitions in QWs},
author = {S. A. Tarasenko and E. L. Ivchenko and V. V. Bel'kov and S. D. Ganichev and D. Schowalter and Petra Schneider and M. Sollinger and W. Prettl and V. M. Ustinov and A. E. Zhukov and L. E. Vorobjev},
journal= {arXiv preprint arXiv:cond-mat/0301388},
year = {2007}
}