Robust coherent magneto-optical properties of columnar type-II quantum dots in ZnTe/ZnSe and ZnMnTe/ZnSe systems

V. R. Whiteside*, I. R. Sellers, M. Eginligil, R. Oszwaldowski, A. Petrou, I. Zutic, Wu-Ching Chou, I. L. Kuskovsky, A. G. Petukhov, A. O. Govorov, B. D. McCombe

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

We present recent experimental results that show strong optical AB effects in the magneto-photoluminescence of columnar II-VI quantum dots (QDs). The AB effects manifest themselves as oscillations in the photoluminescence energy and intensity with magnetic field. It will be shown that this coherent behavior is remarkably robust, persisting at 180 K. We, also, present results for a magnetic system, ZnMnTe QDs. These magnetic type-II systems also display evidence of robust magnetic ordering. This behavior is attributed to the formation of magnetic polarons caused by the exchange interaction between strongly localized holes and Mn ions within the QDs. Time-resolved PL measurements display evidence of magnetic polarons up to 200 K with a binding energy of approximately 40 meV.

原文English
主出版物標題Physics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
頁面483-484
頁數2
DOIs
出版狀態Published - 1 十二月 2011
事件30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
持續時間: 25 七月 201030 七月 2010

出版系列

名字AIP Conference Proceedings
1399
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Conference

Conference30th International Conference on the Physics of Semiconductors, ICPS-30
國家/地區Korea, Republic of
城市Seoul
期間25/07/1030/07/10

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