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
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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


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