標題: | Coherent Aharonov-Bohm oscillations in type-II (Zn,Mn)Te/ZnSe quantum dots |
作者: | Sellers, I. R. Whiteside, V. R. Govorov, A. O. Fan, W. C. Chou, W-C. Khan, I. Petrou, A. McCombe, B. D. 電子物理學系 Department of Electrophysics |
公開日期: | 1-六月-2008 |
摘要: | The magneto-photoluminescence of type-II (Zn,Mn)Te quantum dots is presented. As a result of the type-II band alignment, Aharonov-Bohm (AB) oscillations in the photoluminescence intensity are evident. In addition, an interesting interplay between the AB effect and the spin polarization in these diluted magnetic semiconductor quantum dots is observed. The intensity of the AB oscillations increases with both magnetic field and the degree of optical polarization, indicating that the suppression of spin fluctuations improves the coherence of the system. |
URI: | http://dx.doi.org/10.1103/PhysRevB.77.241302 http://hdl.handle.net/11536/8746 |
ISSN: | 1098-0121 |
DOI: | 10.1103/PhysRevB.77.241302 |
期刊: | PHYSICAL REVIEW B |
Volume: | 77 |
Issue: | 24 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |