Conduction through point contacts in fractional quantum Hall liquid

被引：9

作者：

Ando, M ^{[1
]}

Endo, A ^{[1
]}

Katsumoto, S ^{[1
]}

Iye, Y ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 106, Japan

来源：

PHYSICA B-CONDENSED MATTER | 1998年 / 249卷

关键词：

quantum Hall effect; quantum point contacts; edge states;

D O I：

10.1016/S0921-4526(98)00152-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have investigated conductance spectrum through a quantum point contact in a fractional quantum Hall liquid. The width of resonant peaks near the pinch-off shows temperature dependence suggestive of a non-Fermi liquid nature of the edge channel. Observation of well-defined fractional plateaus corresponding to filling factors different from the bulk implies complicated multiple edge channel structure for a smooth confinement. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：426 / 429

页数：4

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