Confined optical phonon effects on the band gap renormalisation in quantum wire structures

被引：0

作者：

Bennett, CR ^{[1
]}

Güven, K

Tanatar, B

机构：

[1] Univ Essex, Dept Phys, Colchester CO4 3SQ, Essex, England

[2] Bilkent Univ, Dept Phys, TR-06533 Ankara, Turkey

来源：

PHYSICA B | 1999年 / 263卷

关键词：

bandgap renormalisation; quantum wire; phonon confinement;

D O I：

10.1016/S0921-4526(98)01256-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We consider the different approximations for the bandgap renormalisation (BGR) within the random phase approximation (RPA), the quasi-static limit and the plasmon-pole approximation, and compare with the full result. We then include bulk optical phonons and also the phonon confinement using the phonons from the dielectric continuum (DC) model. We show that the results are very similar except at low densities where the quasi-static results overestimate the renormalisation. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：546 / 548

页数：3

共 10 条

[1] PLASMA-DENSITY DEPENDENCE OF THE OPTICAL-SPECTRA FOR QUASI-ONE-DIMENSIONAL QUANTUM-WELL WIRES [J].

BENNER, S ;

HAUG, H .

EUROPHYSICS LETTERS, 1991, 16 (06) :579-583

[2] The interaction of electrons with optical phonons in embedded circular and elliptical GaAs quantum wires [J].

Bennett, CR ;

Constantinou, NC ;

Babiker, M ;

Ridley, BK .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (50) :9819-9831

[3] Confined-phonon effects in the band-gap renormalization of semiconductor quantum wires [J].

Bennett, CR ;

Guven, K ;

Tanatar, B .

PHYSICAL REVIEW B, 1998, 57 (07) :3994-3999

[4] BAND-GAP RENORMALIZATION IN QUANTUM WIRES [J].

CINGOLANI, R ;

RINALDI, R ;

FERRARA, M ;

LAROCCA, GC ;

LAGE, H ;

HEITMANN, D ;

PLOOG, K .

PHYSICAL REVIEW B, 1993, 48 (19) :14331-14337

[5] Plasmon-pole approximation for semiconductor quantum-wire electrons [J].

DasSarma, S ;

Hwang, EH ;

Zheng, L .

PHYSICAL REVIEW B, 1996, 54 (11) :8057-8063

[6] Phase space filling and band gap renormalization in the luminescence of highly excited InGaAs/GaAs quantum wires [J].

Greus, C ;

Forchel, A ;

Spiegel, R ;

Faller, F ;

Benner, S ;

Haug, H .

EUROPHYSICS LETTERS, 1996, 34 (03) :213-218

[7]

MAHAN GD, 1990, MANY PARTICLE PHYSIC

[8] ELECTRON OPTICAL-PHONON INTERACTION IN SINGLE AND DOUBLE HETEROSTRUCTURES [J].

MORI, N ;

ANDO, T .

PHYSICAL REVIEW B, 1989, 40 (09) :6175-6188

[9] Band-gap renormalization in quasi-one-dimensional electron-hole systems [J].

Tanatar, B .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (33) :5997-6004

[10]

Yu-Kuang Hu B., 1993, PHYS REV B, V48, P5469

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