Spin states in semiconductor quantum dot with a single magnetic ion
文献类型：期刊论文
| 作者 | Li, X. J.; Yang, W.; Chang, Kai; Xia, J. B. |
| 刊名 | Physica e-low-dimensional systems & nanostructures
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 40期号:10页码:3097-3106 |
| 关键词 | Quantum dot Sp-d exchange interaction Magneto-optical property |
| ISSN号 | 1386-9477 |
| DOI | 10.1016/j.physe.2008.04.010 |
| 通讯作者 | Chang, kai(kchang@semi.ac.cn) |
| 英文摘要 | We investigate theoretically cdte quantum dots containing a single mn(2+) impurity, including the sp-d exchange interaction between carriers and the magnetic ion and the short-range exchange interaction between electron and hole. we find anticrossing behaviors in the energy spectrum of the electron-hole (e-h) pair that arise from the interplay between exchange interactions and the magnetic field. in addition to the s-d exchange interaction, we find that other mechanisms inducing the anticrossings become important in the strong heavy hole-light hole (hh-lh) mixing regime. the transition strengths between the states with spin projection of mn(2+) ion s(z) not equal -5/2 (s(z) = -5/2) decrease (increase) with increasing magnetic fields due to the alignment of the mn(2+) spin. the spin splitting of the e-h pair states depends sensitively on the external magnetic and electric field, which reveals useful information about the spin orientation and position of the magnetic ion. meanwhile, the manipulation of the position of the magnetic ion offers us a way to control the spin splitting of the carriers. (c) 2008 elsevier b.v. all rights reserved. |
| WOS关键词 | POLARONS |
| WOS研究方向 | Science & Technology - Other Topics ; Physics |
| WOS类目 | Nanoscience & Nanotechnology ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000259715800015 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427227 |
| 专题 | 半导体研究所 |
| 通讯作者 | Chang, Kai |
| 作者单位 | Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X. J.,Yang, W.,Chang, Kai,et al. Spin states in semiconductor quantum dot with a single magnetic ion[J]. Physica e-low-dimensional systems & nanostructures,2008,40(10):3097-3106. |
| APA | Li, X. J.,Yang, W.,Chang, Kai,&Xia, J. B..(2008).Spin states in semiconductor quantum dot with a single magnetic ion.Physica e-low-dimensional systems & nanostructures,40(10),3097-3106. |
| MLA | Li, X. J.,et al."Spin states in semiconductor quantum dot with a single magnetic ion".Physica e-low-dimensional systems & nanostructures 40.10(2008):3097-3106. |
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来源：半导体研究所
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