Coulomb effects in semiconductor quantum dots

被引：45

作者：

Baer, N

Gartner, P

Jahnke, F

机构：

[1] Univ Bremen, Inst Theoret Phys, D-28334 Bremen, Germany

[2] Natl Inst Mat Phys, Bucharest, Romania

来源：

EUROPEAN PHYSICAL JOURNAL B | 2004年 / 42卷 / 02期

关键词：

D O I：

10.1140/epjb/e2004-00375-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Coulomb correlations in the optical spectra of semiconductor quantum dots are investigated using a full-diagonalization approach. The resulting multi-exciton spectra are discussed in terms of the symmetry of the involved states. Characteristic features of the spectra like the nearly equidistantly spaced s-shell emission lines and the approximately constant p-shell transition energies are explained using simplified Hamiltonians that are derived taking into account the relative importance of various interaction contributions. Comparisons with previous results in the literature and their interpretation are made.

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页码：231 / 237

页数：7

相关论文

共 16 条

[1] QUANTUM MANY-BODY STATES OF EXCITONS IN A SMALL QUANTUM-DOT [J].

BARENCO, A ;

DUPERTUIS, MA .

PHYSICAL REVIEW B, 1995, 52 (04) :2766-2778

[2] Fine structure of neutral and charged excitons in self-assembled In(Ga)As/(Al)GaAs quantum dots -: art. no. 195315 [J].

Bayer, M ;

Ortner, G ;

Stern, O ;

Kuther, A ;

Gorbunov, AA ;

Forchel, A ;

Hawrylak, P ;

Fafard, S ;

Hinzer, K ;

Reinecke, TL ;

Walck, SN ;

Reithmaier, JP ;

Klopf, F ;

Schäfer, F .

PHYSICAL REVIEW B, 2002, 65 (19) :1953151-19531523

[3] Hidden symmetries in the energy levels of excitonic 'artificial atoms' [J].

Bayer, M ;

Stern, O ;

Hawrylak, P ;

Fafard, S ;

Forchel, A .

NATURE, 2000, 405 (6789) :923-926

[4]

BRASKEN M, 2001, PHYS REV B, V64, DOI UNSP 035512

[5] Carrier-carrier correlations in an optically excited single semiconductor quantum dot [J].

Dekel, E ;

Gershoni, D ;

Ehrenfreund, E ;

Garcia, JM ;

Petroff, PM .

PHYSICAL REVIEW B, 2000, 61 (16) :11009-11020

[6] Multiexciton spectroscopy of a single self-assembled quantum dot [J].

Dekel, E ;

Gershoni, D ;

Ehrenfreund, E ;

Spektor, D ;

Garcia, JM ;

Petroff, PM .

PHYSICAL REVIEW LETTERS, 1998, 80 (22) :4991-4994

[7] Electronic structure and optical properties of self-assembled quantum dots [J].

Hawrylak, P ;

Wojs, A .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1996, 11 (11) :1516-1520

[8] Hidden symmetry and correlated states of electrons and holes in quantum dots [J].

Hawrylak, P .

SOLID STATE COMMUNICATIONS, 2003, 127 (12) :793-798

[9] Excitonic artificial atoms: Engineering optical properties of quantum dots [J].

Hawrylak, P .

PHYSICAL REVIEW B, 1999, 60 (08) :5597-5608

[10]

Hohenester U, 2000, PHYS STATUS SOLIDI B, V221, P19, DOI 10.1002/1521-3951(200009)221:1<19::AID-PSSB19>3.0.CO