RANDOMNESS AT THE EDGE - THEORY OF QUANTUM HALL TRANSPORT AT FILLING NU=2/3

被引：263

作者：

KANE, CL ^{[1
]}

FISHER, MPA ^{[1
]}

POLCHINSKI, J ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.72.4129

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Current Luttinger liquid edge state theories for filling nu = 2/3 predict a nonuniversal Hall conductance, in disagreement with experiment. Upon inclusion of random edge tunneling we find a phase transition into a new disorder-dominated edge phase. An exact solution of the random model in this phase gives a quantized Hall conductance of 2/3 and a neutral mode propagating upstream. The presence of the neutral mode changes the predicted temperature dependence for tunneling through a point contact from T2/nu-2 to T2.

引用

页码：4129 / 4132

页数：4

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