EVIDENCE FOR A SPIN TRANSITION IN THE V=2/3 FRACTIONAL QUANTUM HALL-EFFECT

被引：168

作者：

EISENSTEIN, JP

STORMER, HL

PFEIFFER, LN

WEST, KW

机构：

[1] ATandT Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.41.7910

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetotransport measurements on a low-density two-dimensional electron system have revealed a re-entrant dependence of the activation energy on magnetic field for the fractional quantum Hall state at 2/3 filling of the lowest Landau level. The data are consistent with a change in the spin structure of the ground state at 2/3 filling, but do not provide a simple picture of the quasiparticle excitation process. As yet we find no similar effect for the =2/5 state. © 1990 The American Physical Society.

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页码：7910 / 7913

页数：4

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