EXCITON UNBINDING IN A CONFINED FERMI SEA

被引：13

作者：

BAUER, GEW

机构：

[1] Philips Research Laboratories, 5600 JA Eindhoven

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 78卷 / 02期

关键词：

D O I：

10.1016/0038-1098(91)90275-Z

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An exciton is predicted to unbind abruptly in a fermion gas which exceeds a critical density. The transition should be observable in terms of a sudden red shift of a few meV in the photoluminescence of high-mobility n-type modulation-doped GaAs/Al(x)Ga1-xAs quantum wells at electron densities of about 10(11) cm-2. Slightly above the critical density, the application of a magnetic field causes a reentrant exciton binding/unbinding phenomenon.

引用

页码：163 / 166

页数：4

共 27 条

[1] POSITRON STATES IN AN ELECTRON GAS
ARPONEN, J
[J]. JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1970, 3 (01): : 107 - &
[2] Bar Joseph I., 1987, PHYS REV LETT, V59, P1357
[3] IMPURITY EFFECT ON THE LINE-SHAPE OF THE PHOTOLUMINESCENCE SPECTRUM OF MODULATION-DOPED QUANTUM-WELLS
BAUER, GEW
ANDO, T
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (10): : 1553 - 1566
[4] ELECTRON-HOLE MAGNETOPLASMAS IN QUANTUM WELLS
BAUER, GEW
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (01) : 60 - 63
[5] MANY-BODY EFFECTS ON THE LUMINESCENCE SPECTRUM OF MODULATION-DOPED QUANTUM WELLS
BAUER, GEW
ANDO, T
[J]. PHYSICAL REVIEW B, 1985, 31 (12): : 8321 - 8324
[6] BAUER GEW, 1990, LOCALIZATION CONFINE
[7] Brandt W., 1983, POSITRON SOLID STATE
[8] INTERACTION OF MAGNETOEXCITONS AND 2-DIMENSIONAL ELECTRON-GAS IN THE QUANTUM HALL REGIME
CHEN, W
FRITZE, M
NURMIKKO, AV
ACKLEY, D
COLVARD, C
LEE, H
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (20) : 2434 - 2437
[9] MANY-BODY EFFECTS IN A MODULATION-DOPED SEMICONDUCTOR QUANTUM-WELL
DELALANDE, C
BASTARD, G
ORGONASI, J
BRUM, JA
LIU, HW
VOOS, M
WEIMANN, G
SCHLAPP, W
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (23) : 2690 - 2692
[10] DIMMOCK JO, 1972, SEMICONDUCTORS SEMIM

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