Curvature, hybridization, and STM images of carbon nanotubes

被引：83

作者：

Kleiner, A ^{[1
]}

Eggert, S

机构：

[1] Chalmers, Inst Theoret Phys, S-41296 Gothenburg, Sweden

[2] Univ Gothenburg, S-41296 Gothenburg, Sweden

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.64.113402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The curvature effects in carbon nanotubes are studied analytically as a function of chirality. The pi orbitals are found to be significantly rehybridized in all tubes, so that they are never normal to the tubes' surface. This results in a curvature induced gap in the electronic band structure, which turns out to be larger than previous estimates. The tilting of the pi orbitals should be observable by atomic resolution scanning tunneling microscopy measurements.

引用

页数：4