Exciton-donor complexes in semiconductor quantum dots in a magnetic field: Infinite and finite potential barriers

被引：5

作者：

Avetisyan, Artak ^{[1
]}

Djotyan, Anahit ^{[1
]}

Kazaryan, Eduard ^{[3
]}

Moulopoulos, Konstantinos ^{[2
]}

机构：

[1] Yerevan State Univ, Dept Phys, Yerevan 375025, Armenia

[2] Univ Cyprus, Dept Phys, CY-1678 Nicosia, Cyprus

[3] Russian Armenian Univ, Dept Theoret Phys, Yerevan 0051, Armenia

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 05期

关键词：

quantum dot; exciton-donor complex; oscillator strength; magnetic field;

D O I：

10.1016/j.physe.2007.10.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The binding energy of the ground state of a charged exciton-donor complex in a spherical semiconductor quantum dot with infinite and finite potential barriers as well as the oscillator strength for the optical transition of electron from the valence band to the ground state of the complex in the presence of a homogeneous magnetic field have been investigated. The theoretical analysis is carried out using a variational approach in the framework of the adiabatic approximation. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1648 / 1650

页数：3

共 9 条

[1] Exciton-donor complexes in a semiconductor quantum dot [J].

Avetisyan, AA ;

Djotyan, AP ;

Kazaryan, EM .

10TH INTERNATIONAL CONFERENCE ON SHALLOW LEVEL CENTERS IN SEMICONDUCTORS (SLCS-10), PROCEEDINGS, 2003, :734-739

[2] Stability of an exciton bound to an ionized donor in quantum dots [J].

Baskoutas, S ;

Schommers, W ;

Terzis, AF ;

Kapaklis, V ;

Rieth, M ;

Politis, C .

PHYSICS LETTERS A, 2003, 308 (2-3) :219-225

[3] Interband light absorption in semiconductor quantum dots connected with the charged and neutral exciton-donor complexes [J].

Djotyan, A ;

Avetisyan, AA ;

Kazaryan, EM .

ON THE CONVERGENCE OF BIO-INFORMATION-, ENVIRONMENTAL-, ENERGY-, SPACE- AND NANO-TECHNOLOGIES, PTS 1 AND 2, 2005, 277-279 :893-898

[4] Exciton-donor complexes in a semiconductor quantum dot in a magnetic field [J].

Djotyan, AP ;

Avetisyan, AA ;

Kazaryan, EM ;

Moulopoulos, K .

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 4, 2006, 3 (04) :1087-+

[5] COMPLICATED QUASIPARTICLE COMPLEXES IN THIN SEMICONDUCTOR-FILMS [J].

DZHOTYAN, AP ;

KAZARIAN, EM ;

ENFIADJIAN, RL .

THIN SOLID FILMS, 1979, 60 (03) :279-287

[6]

Hohenester U, 2000, PHYS STATUS SOLIDI A, V178, P277, DOI 10.1002/1521-396X(200003)178:1<277::AID-PSSA277>3.0.CO

[7]

2-A

[8]

Rashba E. I., 1962, FIZ TVERD TELA, V4, P1029

[9] PROPERTIES OF EXCITONS BOUND TO IONIZED DONORS [J].

SKETTRUP, T ;

SUFFCZYNSKI, M ;

GORZKOWSKI, W .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (02) :512-+

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