Highly anisotropic Zeeman splittings of wurtzite Cd1-xMnxSe quantum dots

被引：3

作者：

Zhang, Xiu-Wen

Fan, Wei-Jun ^{[1
]}

Chang, Kai

Li, Shu-Shen

Xia, Jian-Bai

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 11期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2784192

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic structure and Zeeman splittings of wurtzite Cd1-xMnxSe quantum spheres are studied using the k center dot p method and mean-field model. It is interesting to find that the Zeeman splittings of some hole states in quantum spheres are highly anisotropic due to the spin-orbit coupling and wurtzite crystal structure. The anisotropy of the Zeeman splittings of hole ground states in large dots is large, while that in small dot is small because the hole ground states vary with radius. An external electrical field can change the Zeeman splitting significantly, and tune the g factor from nearly 0 to about 100.

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页数：3

相关论文

共 14 条

[1]

Awschalom DD, 2002, NANOSCI TECHNOL, P147

[2] Spin-polarized light-emitting diodes with Mn-doped InAs quantum dot nanomagnets as a spin aligner [J].

Chakrabarti, S ;

Holub, MA ;

Bhattacharya, P ;

Mishima, TD ;

Santos, MB ;

Johnson, MB ;

Blom, DA .

NANO LETTERS, 2005, 5 (02) :209-212

[3] Electron and hole states in diluted magnetic semiconductor quantum dots [J].

Chang, K ;

Li, SS ;

Xia, JB ;

Peeters, FM .

PHYSICAL REVIEW B, 2004, 69 (23) :235203-1

[4] Zeeman splitting in ballistic hole quantum wires [J].

Danneau, R. ;

Klochan, O. ;

Clarke, W. R. ;

Ho, L. H. ;

Micolich, A. P. ;

Simmons, M. Y. ;

Hamilton, A. R. ;

Pepper, M. ;

Ritchie, D. A. ;

Zulicke, U. .

PHYSICAL REVIEW LETTERS, 2006, 97 (02)

[5] Hole-mediated ferromagnetism in tetrahedrally coordinated semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F .

PHYSICAL REVIEW B, 2001, 63 (19)

[6] DILUTED MAGNETIC SEMICONDUCTORS [J].

FURDYNA, JK .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (04) :R29-R64

[7] Spin spectroscopy of dark excitons in CdSe quantum dots to 60 T [J].

Johnston-Halperin, E ;

Awschalom, DD ;

Crooker, SA ;

Efros, AL ;

Rosen, M ;

Peng, X ;

Alivisatos, AP .

PHYSICAL REVIEW B, 2001, 63 (20)

[8] Ultra-stable nanoparticles of CdSe revealed from mass spectrometry [J].

Kasuya, A ;

Sivamohan, R ;

Barnakov, YA ;

Dmitruk, IM ;

Nirasawa, T ;

Romanyuk, VR ;

Kumar, V ;

Mamykin, SV ;

Tohji, K ;

Jeyadevan, B ;

Shinoda, K ;

Kudo, T ;

Terasaki, O ;

Liu, Z ;

Belosludov, RV ;

Sundararajan, V ;

Kawazoe, Y .

NATURE MATERIALS, 2004, 3 (02) :99-102

[9] Organometallic synthesis and spectroscopic characterization of manganese-doped CdSe nanocrystals [J].

Mikulec, FV ;

Kuno, M ;

Bennati, M ;

Hall, DA ;

Griffin, RG ;

Bawendi, MG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (11) :2532-2540

[10] Making nonmagnetic semiconductors ferromagnetic [J].

Ohno, H .

SCIENCE, 1998, 281 (5379) :951-956