Imaging of low-compressibility strips in the quantum Hall liquid

被引：21

作者：

Finkelstein, G

Glicofridis, PI

Tessmer, SH

Ashoori, RC

Melloch, MR

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

[3] Purdue Univ, Sch Elect Engn, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.61.R16323

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using subsurface charge accumulation scanning microscopy, we image strips of low compressibility corresponding to several integer quantum Hall filling factors. We study in detail the strips at Landau level filling factors nu=2 and 4. The observed strips appear significantly wider than predicted by theory. We present a model accounting for the discrepancy by considering a disorder-induced nonzero density of states in the cyclotron gap.

引用

页码：R16323 / R16326

页数：4

共 20 条

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