STM studies of TbTe3:: Evidence for a fully incommensurate charge density wave

被引：72

作者：

Fang, A. ^{[1
]}

Ru, N.

Fisher, I. R.

Kapitulnik, A.

机构：

[1] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.99.046401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe unidirectional charge density wave (CDW) ordering on the quasi-2D material TbTe3 with a scanning tunneling microscope at similar to 6 K. Our analysis indicates that the CDW is fully incommensurate, with wave vector q(CDW)approximate to 0.71x2 pi/c. By imaging at various tip-sample voltages, we highlight effects of the subsurface layer and its effect on the CDW. We also observe an additional (possibly surface) dimerization and approximate to 0.68x2 pi/a ordering perpendicular to the CDW.

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页数：4

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