標題: | Magnetic properties of parabolic quantum dots in the presence of the spin-orbit interaction |
作者: | Voskoboynikov, O Bauga, O Lee, CP Tretyak, O 交大名義發表 National Chiao Tung University |
公開日期: | 1-十一月-2003 |
摘要: | We present a theoretical study of the effect of the spin-orbit interaction on the electron magnetization and magnetic susceptibility of small semiconductor quantum dots. Those characteristics demonstrate quite interesting behavior at low temperature. The abrupt changes of the magnetization and susceptibility at low magnetic fields are attributed to the alternative crossing between the spin-split electron levels in the energy spectrum, essentially due to the spin-orbit interaction (an analog of the general Paschen-Back effect). Detailed calculation using parameters of InAs semiconductor quantum dot demonstrates an enhancement of paramagnetism of the dots. There is an additional possibility to control the effect by external electric fields or the dot design. (C) 2003 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.1614426 http://hdl.handle.net/11536/27396 |
ISSN: | 0021-8979 |
DOI: | 10.1063/1.1614426 |
期刊: | JOURNAL OF APPLIED PHYSICS |
Volume: | 94 |
Issue: | 9 |
起始頁: | 5891 |
結束頁: | 5895 |
顯示於類別: | 期刊論文 |