EXCITON STARK LADDER IN GAAS/GA1-XALXAS SUPERLATTICES

被引：108

作者：

DIGNAM, MM ^{[1
]}

SIPE, JE ^{[1
]}

机构：

[1] UNIV TORONTO,ONTARIO LASER & LIGHTWAVE RES CTR,TORONTO M5S 1A7,ONTARIO,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.64.1797

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first calculation of the energies and absorption spectra of GaAs/Ga0.65Al0.35As superlattice excitons in the presence of an applied electric field. The resulting spectra differ substantially from the single-particle Stark-ladder results, particularly at low field strengths. We find very good agreement with the experimental photocurrent spectra of Agullã-Rueda, Mendez, and Hong [Phys. Rev. B 40, 1357 (1989)], and suggest other superlattice structures to test the quantum coherence of the exciton wave functions. © 1990 The American Physical Society.

引用

页码：1797 / 1800

页数：4

共 9 条

[1] CHANGE IN DIMENSIONALITY OF SUPERLATTICE EXCITONS INDUCED BY AN ELECTRIC-FIELD [J].

AGULLORUEDA, F ;

BRUM, JA ;

MENDEZ, EE ;

HONG, JM .

PHYSICAL REVIEW B, 1990, 41 (03) :1676-1679

[2] QUANTUM COHERENCE IN SEMICONDUCTOR SUPERLATTICES [J].

AGULLORUEDA, F ;

MENDEZ, EE ;

HONG, JM .

PHYSICAL REVIEW B, 1989, 40 (02) :1357-1360

[3]

ASHCROFT NW, 1976, SOLID STATE PHYS, P224

[4] ELECTRIC-FIELD INDUCED LOCALIZATION AND OSCILLATORY ELECTRO-OPTICAL PROPERTIES OF SEMICONDUCTOR SUPERLATTICES [J].

BLEUSE, J ;

BASTARD, G ;

VOISIN, P .

PHYSICAL REVIEW LETTERS, 1988, 60 (03) :220-223

[5] EXCITON-STATES IN TYPE-I AND TYPE-II GAAS GA1-XALXAS SUPERLATTICES [J].

DIGNAM, MM ;

SIPE, JE .

PHYSICAL REVIEW B, 1990, 41 (05) :2865-2878

[6] EXISTENCE OF WANNIER-STARK LOCALIZATION [J].

EMIN, D ;

HART, CF .

PHYSICAL REVIEW B, 1987, 36 (14) :7353-7359

[7] STARK LOCALIZATION IN GAAS-GAALAS SUPERLATTICES UNDER AN ELECTRIC-FIELD [J].

MENDEZ, EE ;

AGULLORUEDA, F ;

HONG, JM .

PHYSICAL REVIEW LETTERS, 1988, 60 (23) :2426-2429

[8] WANNIER EXCITONS IN GAAS-GA1-XALXAS QUANTUM-WELL STRUCTURES - INFLUENCE OF THE EFFECTIVE-MASS MISMATCH [J].

PRIESTER, C ;

ALLAN, G ;

LANNOO, M .

PHYSICAL REVIEW B, 1984, 30 (12) :7302-7304

[9] TIGHT-BINDING ANALYSIS ON EXCITON BINDING-ENERGY IN FIELD-INDUCED STARK-LOCALIZED SUPERLATTICES [J].

YAN, RH ;

LARUELLE, F ;

COLDREN, LA .

APPLIED PHYSICS LETTERS, 1989, 55 (19) :2002-2004

← 1 →