Binding energy of localized trions in quantum wires

被引：3

作者：

Zhai, Li-Xue ^{[2
,3
]}

Wang, Yan ^{[4
]}

Liu, Jian-Jun ^{[1
]}

机构：

[1] Shijiazhuang Univ, Dept Phys, Shijiazhuang 050035, Hebei, Peoples R China

[2] Hebei Normal Univ, Coll Phys & Informat Engn, Shijiazhuang 050024, Peoples R China

[3] Hebei Normal Univ, Hebei Adv Thin Film Lab, Shijiazhuang 050024, Peoples R China

[4] Hebei Chem & Pharmaceut Coll, Shijiazhuang 050026, Peoples R China

来源：

PHYSICS LETTERS A | 2012年 / 376卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Localized trion; Quantum wire; Binding energy;

D O I：

10.1016/j.physleta.2012.04.025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a finite difference calculation of the binding energies of localized trions in quasi-one-dimensional quantum wires (QWRs). It is found that both the lateral confinement and the localization potential have a strong effect on the relative stability of the trions. It is confirmed that a weak localization potential not only enhances the binding energy but also changes the relative stability of the positive and negative trions. Our theoretical model is in good accord with a recent experiment regarding photoluminescence in disordered QWRs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1866 / 1870

页数：5

共 19 条

[1] Binding energy of charged excitons in ZnSe-based quantum wells [J].

Astakhov, GV ;

Yakovlev, DR ;

Kochereshko, VP ;

Ossau, W ;

Faschinger, W ;

Puls, J ;

Henneberger, F ;

Crooker, SA ;

McCulloch, Q ;

Wolverson, D ;

Gippius, NA ;

Waag, A .

PHYSICAL REVIEW B, 2002, 65 (16) :1653351-16533517

[2] Effective interaction for charge carriers confined in quasi-one-dimensional nanostructures [J].

Bednarek, S ;

Szafran, B ;

Chwiej, T ;

Adamowski, J .

PHYSICAL REVIEW B, 2003, 68 (04)

[3] Binding energies of positive and negative trions: From quantum wells to quantum dots [J].

Bracker, AS ;

Stinaff, EA ;

Gammon, D ;

Ware, ME ;

Tischler, JG ;

Park, D ;

Gershoni, D ;

Filinov, AV ;

Bonitz, M ;

Peeters, F ;

Riva, C .

PHYSICAL REVIEW B, 2005, 72 (03)

[4] Influence of well-width fluctuations on the binding energy of excitons, charged excitons, and biexcitons in GaAs-based quantum wells [J].

Filinov, AV ;

Riva, C ;

Peeters, FM ;

Lozovik, YE ;

Bonitz, M .

PHYSICAL REVIEW B, 2004, 70 (03) :035323-1

[5] Fine structure splitting in the optical spectra of single GaAs quantum dots [J].

Gammon, D ;

Snow, ES ;

Shanabrook, BV ;

Katzer, DS ;

Park, D .

PHYSICAL REVIEW LETTERS, 1996, 76 (16) :3005-3008

[6] Comparative study of the negatively and positively charged excitons in GaAs quantum wells [J].

Glasberg, S ;

Finkelstein, G ;

Shtrikman, H ;

Bar-Joseph, I .

PHYSICAL REVIEW B, 1999, 59 (16) :10425-10428

[7] Local disorder and optical properties in V-shaped quantum wires: Toward one-dimensional exciton systems [J].

Guillet, T ;

Grousson, R ;

Voliotis, V ;

Wang, XL ;

Ogura, M .

PHYSICAL REVIEW B, 2003, 68 (04)

[8] Metamorphosis of a quantum wire into quantum dots [J].

Hasen, J ;

Pfeiffer, LN ;

Pinczuk, A ;

He, S ;

West, KW ;

Dennis, BS .

NATURE, 1997, 390 (6655) :54-57

[9] NEAR-FIELD SPECTROSCOPY OF THE QUANTUM CONSTITUENTS OF A LUMINESCENT SYSTEM [J].

HESS, HF ;

BETZIG, E ;

HARRIS, TD ;

PFEIFFER, LN ;

WEST, KW .

SCIENCE, 1994, 264 (5166) :1740-1745

[10] Enhancement of the magnetic anisotropy of nanometer-sized Co clusters:: Influence of the surface and of interparticle interactions -: art. no. 094409 [J].

Luis, F ;

Torres, JM ;

García, LM ;

Bartolomé, J ;

Stankiewicz, J ;

Petroff, F ;

Fettar, F ;

Maurice, JL ;

Vaurès, A .

PHYSICAL REVIEW B, 2002, 65 (09) :1-10

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