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	Spin states and persistent currents in a quantum ring with an embedded magnetic impurity
	Sheng, J. S.; Chang, Kai
刊名	Journal of physics-condensed matter
	2008-01-16
卷号	20期号:2页码:10
ISSN号	0953-8984
DOI	10.1088/0953-8984/20/02/025222
通讯作者	Sheng, j. s.()
英文摘要	Spin states and persistent currents are investigated theoretically in a quantum ring with an embedded magnetic ion under a uniform magnetic field including the spin-orbit interactions. the magnetic impurity acts as a spin-dependent delta-potential for electrons and results in gaps in the energy spectrum, consequently suppressing the oscillation of the persistent currents. the competition between the zeeman splittings and the s-d exchange interaction leads to a transition of the electron ground state in the ring. the interplay between the periodic potential induced by the rashba and dresselhaus spin-orbit interactions and the delta-potential induced by the magnetic impurity leads to significant variation in the energy spectrum, charge density distribution, and persistent currents of electrons in the ring.
WOS关键词	D EXCHANGE INTERACTION ; SEMICONDUCTORS ; SPINTRONICS ; INJECTION ; FIELD
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000252922000029
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427470
专题	半导体研究所
通讯作者	Sheng, J. S.
作者单位	Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Sheng, J. S.,Chang, Kai. Spin states and persistent currents in a quantum ring with an embedded magnetic impurity[J]. Journal of physics-condensed matter,2008,20(2):10.
APA	Sheng, J. S.,&Chang, Kai.(2008).Spin states and persistent currents in a quantum ring with an embedded magnetic impurity.Journal of physics-condensed matter,20(2),10.
MLA	Sheng, J. S.,et al."Spin states and persistent currents in a quantum ring with an embedded magnetic impurity".Journal of physics-condensed matter 20.2(2008):10.

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