EFFECTS OF ELECTRIC AND MAGNETIC-FIELDS ON EXCITONS IN QUANTUM DOTS

被引：11

作者：

JAZIRI, S

机构：

[1] Departemente de physique, Ecole Normale Superieure De Bizerte, Jarzouna, 7020 Bizerte, Tunisia

来源：

SOLID STATE COMMUNICATIONS | 1994年 / 91卷 / 02期

关键词：

D O I：

10.1016/0038-1098(94)90278-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have developed a perturbative-variational method to investigate the effects of electric and magnetic fields on excitons in parabolic quantum dots. The application of an electric field induces a quantum confined Stark effect, alters the exciton binding energy and oscillator strength. The application of a magnetic field induces a diamagnetic shift, enhances the exciton binding energy and oscillator strength. The effects of the external fields are discussed for different size of quantum dots.

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页码：171 / 175

页数：5

相关论文

共 18 条

[1] PHOTOLUMINESCENCE OF OVERGROWN GAAS-GAALAS QUANTUM DOTS [J].

ARNOT, HEG ;

WATT, M ;

SOTOMAYORTORRES, CM ;

GLEW, R ;

CUSCO, R ;

BATES, J ;

BEAUMONT, SP .

SUPERLATTICES AND MICROSTRUCTURES, 1989, 5 (03) :459-463

[2] ELECTRONIC STATES IN SEMICONDUCTOR HETEROSTRUCTURES [J].

BASTARD, G ;

BRUM, JA .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) :1625-1644

[3]

BOCKELMANN U, 1993, 6TH INT C MOD SEM ST

[4] OPTICAL AND MAGNETO-OPTICAL ABSORPTION IN PARABOLIC QUANTUM WELLS [J].

BREY, L ;

JOHNSON, NF ;

HALPERIN, BI .

PHYSICAL REVIEW B, 1989, 40 (15) :10647-10649

[5] PHOTOLUMINESCENCE FROM A SINGLE GAAS/ALGAAS QUANTUM DOT [J].

BRUNNER, K ;

BOCKELMANN, U ;

ABSTREITER, G ;

WALTHER, M ;

BOHM, G ;

TRANKLE, G ;

WEIMANN, G .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3216-3219

[6] EXCITONS IN QUANTUM BOXES - CORRELATION-EFFECTS AND QUANTUM CONFINEMENT [J].

BRYANT, GW .

PHYSICAL REVIEW B, 1988, 37 (15) :8763-8772

[7]

BRYANT GW, 1992, EXCITONS CONFINED SY

[8] QUANTUM-CONFINED STARK EFFECTS ON A GAAS CLUSTER EMBEDDED IN ALXGA1-XAS [J].

CHIBA, Y ;

OHNISHI, S .

PHYSICAL REVIEW B, 1988, 38 (18) :12988-12995

[9] AN ALTERNATE TREATMENT OF MAGNETIC AND ELECTRIC-FIELD EFFECTS ON THE A-EXCITON SPECTRUM IN CADMIUM-SULFIDE [J].

DAI, CM ;

PEI, JH ;

CHUU, DS .

PHYSICA B, 1990, 160 (03) :317-328

[10]

HALONEN V, 1992, PHYS REV, V45, P5986