THEORIES FOR NU=1/2 IN SINGLE-LAYER AND DOUBLE-LAYER SYSTEMS

被引：36
|
作者：
HALPERIN, BI
机构：
[1] Physics Department, Harvard University, Cambridge
来源：
SURFACE SCIENCE | 1994年 / 305卷 / 1-3期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0039-6028(94)90850-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Recent experiments have shown that a quantized Hall plateau can occur in double-layer systems at total filling factor nu = 1/2, though there is no plateau at nu = 1/2 in a normal single-layer system. For the single-layer system, considerable insight has been provided by a theory based on the fermion Chem-Simons picture, where the electrons are transformed into fermions that carry two flux quanta of a Chern-Simons gauge field. A similar picture can be used to characterize ground states which have been proposed for the two-layer system.
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页码：1 / 7
页数：7
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