ENERGY GAPS OF THE FRACTIONAL QUANTUM HALL-EFFECT MEASURED BY MAGNETOOPTICS

被引：22

作者：

KUKUSHKIN, IV ^{[1
]}

PULSFORD, NJ ^{[1
]}

VONKLITZING, K ^{[1
]}

PLOOG, K ^{[1
]}

HAUG, RJ ^{[1
]}

KOCH, S ^{[1
]}

TIMOFEEV, VB ^{[1
]}

机构：

[1] ACAD SCI USSR,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,USSR

来源：

EUROPHYSICS LETTERS | 1992年 / 18卷 / 01期

关键词：

D O I：

10.1209/0295-5075/18/1/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.

引用

页码：63 / 68

页数：6

共 17 条

[1]

APALCOV VM, 1991, PISMA ESKP TEOR FIZ, V53, P422

[2] ACTIVATION-ENERGIES AND LOCALIZATION IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

BOEBINGER, GS ;

STORMER, HL ;

TSUI, DC ;

CHANG, AM ;

HWANG, JCM ;

CHO, AY ;

TU, CW .

PHYSICAL REVIEW B, 1987, 36 (15) :7919-7929

[3] MAGNETOOPTICAL EVIDENCE FOR FRACTIONAL QUANTUM HALL STATES DOWN TO FILLING FACTOR 1/9 [J].

BUHMANN, H ;

JOSS, W ;

VONKLITZING, K ;

KUKUSHKIN, IV ;

MARTINEZ, G ;

PLAUT, AS ;

PLOOG, K ;

TIMOFEEV, VB .

PHYSICAL REVIEW LETTERS, 1990, 65 (08) :1056-1059

[4] CONFIGURATION-INTERACTION CALCULATIONS ON THE FRACTIONAL QUANTUM HALL-EFFECT [J].

FANO, G ;

ORTOLANI, F ;

COLOMBO, E .

PHYSICAL REVIEW B, 1986, 34 (04) :2670-2680

[5] OPTICAL INVESTIGATIONS OF THE INTEGER AND FRACTIONAL QUANTUM HALL-EFFECTS - ENERGY PLATEAUS, INTENSITY MINIMA, AND LINE SPLITTING IN BAND-GAP EMISSION [J].

GOLDBERG, BB ;

HEIMAN, D ;

PINCZUK, A ;

PFEIFFER, L ;

WEST, K .

PHYSICAL REVIEW LETTERS, 1990, 65 (05) :641-644

[6] RADIATIVE RECOMBINATION OF TWO-DIMENSIONAL ELECTRONS IN ACCEPTOR DELTA-DOPED GAAS-ALXGA1-XAS SINGLE HETEROJUNCTIONS [J].

KUKUSHKIN, IV ;

VONKLITZING, K ;

PLOOG, K ;

TIMOFEEV, VB .

PHYSICAL REVIEW B, 1989, 40 (11) :7788-7792

[7]

KUKUSHKIN IV, 1986, JETP LETT, V44, P228

[8] ANOMALOUS QUANTUM HALL-EFFECT - AN INCOMPRESSIBLE QUANTUM FLUID WITH FRACTIONALLY CHARGED EXCITATIONS [J].

LAUGHLIN, RB .

PHYSICAL REVIEW LETTERS, 1983, 50 (18) :1395-1398

[9] EXPERIMENTAL STUDIES OF THE V=1/5 HIERARCHY IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

MALLETT, JR ;

CLARK, RG ;

NICHOLAS, RJ ;

WILLETT, R ;

HARRIS, JJ ;

FOXON, CT .

PHYSICAL REVIEW B, 1988, 38 (03) :2200-2203

[10] MONTE-CARLO EVALUATION OF TRIAL WAVE-FUNCTIONS FOR THE FRACTIONAL QUANTIZED HALL-EFFECT - DISK GEOMETRY [J].

MORF, R ;

HALPERIN, BI .

PHYSICAL REVIEW B, 1986, 33 (04) :2221-2246

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