WANNIER-STARK WAVE-FUNCTION SPECTROSCOPY IN GAAS/GAALAS SUPERLATTICES

被引：8

作者：

BARRAU, J ^{[1
]}

KHIROUNI, K ^{[1
]}

THAN, DX ^{[1
]}

AMAND, T ^{[1
]}

BROUSSEAU, M ^{[1
]}

LARUELLE, F ^{[1
]}

ETIENNE, B ^{[1
]}

机构：

[1] CNRS,MICROSTRUCT & MICROELECTR LAB,F-92220 BAGNEUX,FRANCE

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 74卷 / 03期

关键词：

D O I：

10.1016/0038-1098(90)91011-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the Wannier-Stark localization at intermediate electric field (∝15 kV/cm) in GaAs/BaAlAs superlattices by the photocurrent technique. In this field regime the electron wavefunction remains extended over several periods of the superlattice while the heavy hole wavefunction is already strongly localized in a single quantum well. This situation is most suitable to appreciate the electron coherence length and allows an electron wavefunction "spectroscopy". We present also appropriate models explaining the relative ratio and field sensitivity of the varied transitions which are observed. © 1990.

引用

页码：147 / 153

页数：7

共 9 条

[1]

BARRAU J, IN PRESS J APPL PHYS

[2] 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

[3] SADDLE-POINT EXCITONS IN SOLIDS AND SUPERLATTICES [J].

CHU, H ;

CHANG, YC .

PHYSICAL REVIEW B, 1987, 36 (05) :2946-2949

[4] SUPERLATTICE AND NEGATIVE DIFFERENTIAL CONDUCTIVITY IN SEMICONDUCTORS [J].

ESAKI, L ;

TSU, R .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1970, 14 (01) :61-&

[5]

LARUELLE F, UNPUB

[6] 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

[7]

Suemoto T., 1987, 18th International Conference on the Physics of Semiconductors, P683

[8] OBSERVATION OF THE WANNIER-STARK QUANTIZATION IN A SEMICONDUCTOR SUPERLATTICE [J].

VOISIN, P ;

BLEUSE, J ;

BOUCHE, C ;

GAILLARD, S ;

ALIBERT, C ;

REGRENY, A .

PHYSICAL REVIEW LETTERS, 1988, 61 (14) :1639-1642

[9]

VOISIN P, UNPUB

← 1 →