MAGNETOOPTICAL EVIDENCE FOR FRACTIONAL QUANTUM HALL STATES DOWN TO FILLING FACTOR 1/9

被引：147

作者：

BUHMANN, H

JOSS, W

VONKLITZING, K

KUKUSHKIN, IV

MARTINEZ, G

PLAUT, AS

PLOOG, K

TIMOFEEV, VB

机构：

[1] CNRS,SERV NATL CHAMPS INTENSES,F-38042 GRENOBLE,FRANCE

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

[3] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.65.1056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Discontinuities have been observed in the energy dependence on magnetic field of the luminescence line corresponding to 2D electron-hole recombination in GaAs/AlGaAs heterojunctions at filling factors=2/3, 1/3, 4/5, 3/5, 2/5, 1/5, 1/7, and 1/9. We associate these energy-position shifts with discontinuous behavior of the chemical potential due to condensation of the 2D electrons into an incompressible Fermi-liquid state, and thereby evaluate the energy gaps at fractional filling factors down to 1/9. © 1990 The American Physical Society.

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页码：1056 / 1059

页数：4

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