Excitation gaps in the fractional quantum Hall effect in tetracene

被引：6

作者：

Schön, JH

Kloc, C

Batlogg, B

机构：

[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

[2] ETH Honggerberg, Solid State Phys Lab, CH-8093 Zurich, Switzerland

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 07期

关键词：

D O I：

10.1088/0953-8984/13/7/101

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have measured the temperature dependence of the fractional quantum Hall effect at filling factors v = 1/3, 2/3, and 2/5 in tetracene in order to determine the associated excitation gaps. The stronger two-dimensional confinement of the hole gas compared to conventional inorganic semiconductors as well as the strong electron-electron interactions result in larger excitation gaps. As a result, the fractional quantum Hall effect is observable at moderately high temperatures. An excitation gap of 24 K at 9 T is estimated for v = 1/3.

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收藏

页码：L163 / L167

页数：5

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