FERMI ENHANCEMENT AND BAND-GAP RENORMALIZATION OF ALXGA1-XAS/GAAS MODULATION-DOPED QUANTUM-WELLS

被引：24

作者：

HAACKE, S

ZIMMERMANN, R

BIMBERG, D

KAL, H

MARS, DE

MILLER, JN

机构：

[1] TECH UNIV BERLIN,INST FESTKORPERPHYS 1,HARDENBERGSTR 36,W-1000 BERLIN 12,GERMANY

[2] INST GRUNDLAGEN HALBLEIKRPHYS QUANTENSTRUTCTUREN,MAX PLANCK ARBEITSGRP,O-1086 BERLIN,GERMANY

[3] HEWLETT PACKARD CO,PALO ALTO,CA 94304

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.45.1736

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A comparative study of photoluminescence and photoluminescence-excitation spectra of thin n- and p-type modulation-doped Al(x)Ga1-xAs/GaAs quantum wells is presented for sheet carrier densities up to 10(12) cm.2. Photoluminescence-excitation spectra reveal a rather weak enhancement of the oscillator strength at the Fermi edge which is not observable in the emission spectra. The renormalization of the quasi-two-dimensional band gap is obtained by comparison with undoped quantum wells of the same width. The experimental data compare favorably with our calculations of the band-gap renormalization within the local-density approximation as well as with the self-energy shifts of electron and hole subbands calculated within the random-phase approximation. The importance of a detailed line-shape analysis for the separation of intrinsic and extrinsic components in the photoluminescence spectra is emphasized.

引用

页码：1736 / 1741

页数：6

共 27 条

[11] BAND-GAP RENORMALIZATION AND BAND-FILLING EFFECTS IN A HOMOGENEOUS ELECTRON-HOLE PLASMA IN IN0.53GA0.47AS/INP SINGLE QUANTUM WELLS
KULAKOVSKII, VD
LACH, E
FORCHEL, A
GRUTZMACHER, D
[J]. PHYSICAL REVIEW B, 1989, 40 (11): : 8087 - 8090
[12] OBSERVATION OF THE FERMI EDGE ANOMALY IN THE ABSORPTION AND LUMINESCENCE SPECTRA OF N-TYPE MODULATION-DOPED GAAS-ALGAAS QUANTUM-WELLS
LEE, JS
IWASA, Y
MIURA, N
[J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1987, 2 (10) : 675 - 678
[13] ELECTRON-HOLE CORRELATION SINGULARITY IN OPTICAL-SPECTRA OF MODULATION DOPED GAAS-ALGAAS QUANTUM WELLS
LIVESCU, G
MILLER, DAB
CHEMLA, DS
[J]. SUPERLATTICES AND MICROSTRUCTURES, 1988, 4 (03) : 359 - 361
[14] MADELUNG O, 1982, PHYSICS GROUP 4 EL A, V17
[15] MAHAN GD, 1990, MANY PARTICLE PHYSIC
[16] OPTICAL-PROPERTIES OF ONE-COMPONENT AND 2-COMPONENT PLASMA IN GAAS/AIGAAS N-MODULATION DOPED HETEROSTRUCTURES
MUNNIX, S
BIMBERG, D
MARS, DE
MILLER, JN
LARKINS, EC
HARRIS, JS
[J]. SUPERLATTICES AND MICROSTRUCTURES, 1989, 6 (04) : 369 - 372
[17] MUNNIX S, 1989, J VAC SCI TECHNOL B, V4, P1014
[18] OPTICAL PROCESSES OF 2D ELECTRON-PLASMA IN GAAS-(ALGA) AS HETEROSTRUCTURES
PINCZUK, A
SHAH, J
MILLER, RC
GOSSARD, AC
WIEGMANN, W
[J]. SOLID STATE COMMUNICATIONS, 1984, 50 (08) : 735 - 739
[19] INFRARED AND POLARIZATION ANOMALIES IN THE OPTICAL-SPECTRA OF MODULATION-DOPED SEMICONDUCTOR QUANTUM-WELL STRUCTURES
RUCKENSTEIN, AE
SCHMITTRINK, S
MILLER, RC
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (05) : 504 - 507
[20] MANY-BODY EFFECTS IN THE ABSORPTION, GAIN, AND LUMINESCENCE SPECTRA OF SEMICONDUCTOR QUANTUM-WELL STRUCTURES
SCHMITTRINK, S
ELL, C
HAUG, H
[J]. PHYSICAL REVIEW B, 1986, 33 (02): : 1183 - 1189

← 1 2 3 →