標題: | Spin relaxation in a GaAs quantum dot embedded inside a suspended phonon cavity |
作者: | Liao, YY Chen, YN Chuu, DS Brandes, T 電子物理學系 Department of Electrophysics |
公開日期: | 1-二月-2006 |
摘要: | The phonon-induced spin relaxation in a two-dimensional quantum dot embedded inside a semiconductor slab is investigated theoretically. An enhanced relaxation rate is found due to the phonon van Hove singularities. Oppositely, a vanishing deformation potential may also result in a suppression of the spin relaxation rate. For larger quantum dots, the interplay between the spin orbit interaction and Zeeman levels causes the suppression of the relaxation at several points. Furthermore, a crossover from confined to bulklike systems is obtained by varying the width of the slab. |
URI: | http://dx.doi.org/10.1103/PhysRevB.73.085310 http://hdl.handle.net/11536/12643 |
ISSN: | 2469-9950 |
DOI: | 10.1103/PhysRevB.73.085310 |
期刊: | PHYSICAL REVIEW B |
Volume: | 73 |
Issue: | 8 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |