Binding energy of excitons in parabolic quantum wells in uniform electric and magnetic fields

被引：2

作者：

Taqi, A. ^{[1
]}

Diouri, J. ^{[1
]}

机构：

[1] Univ Abdelmalek Essaadi, Fac Sci, Dept Phys, BP 2121, Tetouan, Morocco

来源：

SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS | 2012年 / 15卷 / 01期

关键词：

parabolic quantum well; exciton; binding energy;

D O I：

10.15407/spqeo15.01.021

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Parameterized equations have been derived using variational calculation for energy levels of Wannier excitons in 2D-parabolic quantum wells in uniform electric and magnetic fields. The formulation has been performed in the framework of the effective mass approximation and two-band model. Illustrations have been given for GaAlAs-GaAs-GaAlAs and CdMnTe-CdTe-CdMnTe parabolic quantum wells. The comparison with existing data displays good agreement.

引用

页码：21 / 25

页数：5

共 10 条

[1] ACCURATE THEORY OF EXCITONS IN GAAS-GA1-XALXAS QUANTUM-WELLS [J].

ANDREANI, LC ;

PASQUARELLO, A .

PHYSICAL REVIEW B, 1990, 42 (14) :8928-8938

[2] HYDROSTATIC-PRESSURE DEPENDENCE OF BAND OFFSETS IN GAAS/ALXGA1-XAS HETEROSTRUCTURES [J].

CHEONG, HM ;

BURNETT, JH ;

PAUL, W ;

HOPKINS, PF ;

GOSSARD, AC .

PHYSICAL REVIEW B, 1994, 49 (15) :10444-10449

[3] Parametrized equations for excitons in two-dimensional semiconductor quantum wells with arbitrary potential profiles [J].

Diouri, J ;

Taqi, A ;

El Haddad, A ;

Katih, M ;

Feddi, E .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2003, 18 (04) :377-384

[4] The symmetry of the relative motion of excitons in semiconductor heterostructures [J].

Harrison, P ;

Piorek, T ;

Hagston, WE ;

Stirner, T .

SUPERLATTICES AND MICROSTRUCTURES, 1996, 20 (01) :45-57

[5] EXCITONS IN PARABOLIC QUANTUM DOTS IN ELECTRIC AND MAGNETIC-FIELDS [J].

JAZIRI, S ;

BENNACEUR, R .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1994, 9 (10) :1775-1780

[6] Binding energy of excitons in symmetric and asymmetric coupled double quantum wells in a uniform magnetic field [J].

Kasapoglu, E ;

Sari, H ;

Balkan, N ;

Sokmen, I ;

Ergun, Y .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2000, 15 (02) :219-224

[7] Excitons in parabolic quantum wells [J].

Kyrychenko, F ;

Kossut, J .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1998, 13 (10) :1076-1079

[8] The energy of excitons in parabolic quantum wells investigated by the effective variational Hamiltonian method [J].

Rusin, TM .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (05) :575-587

[9] EXCITONS AND FUNDAMENTAL ABSORPTION IN QUANTUM-WELLS [J].

WINKLER, R .

PHYSICAL REVIEW B, 1995, 51 (20) :14395-14409

[10] EXACT ANALYTIC ANALYSIS OF FINITE PARABOLIC QUANTUM-WELLS WITH AND WITHOUT A STATIC ELECTRIC-FIELD [J].

YEUN, WP .

PHYSICAL REVIEW B, 1993, 48 (23) :17316-17320

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