Gauge fields and pairing in double-layer composite fermion metals

被引：112

作者：

Bonesteel, NE

McDonald, IA

Nayak, C

机构：

[1] PENN STATE UNIV,DEPT PHYS,UNIVERSITY PK,PA 16802

[2] PRINCETON UNIV,DEPT PHYS,JOSEPH HENRY LABS,PRINCETON,NJ 08544

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.77.3009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A symmetrically doped double-layer electron system with total tilling fraction nu = 1/m decouples into two even-denominator composite fermion ''metals'' when the layer spacing is large. Statistical gauge fluctuations in this system mediate an attractive pairing interaction between composite fermions in different layers. A strong-coupling analysis shows that for any layer spacing d this pairing interaction leads to the formation of a paired quantum Hall state.

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页码：3009 / 3012

页数：4

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