Carbon Nanoelectronics: Unzipping Tubes into Graphene Ribbons

被引：109

作者：

Santos, H. ^{[1
]}

Chico, L. ^{[1
]}

Brey, L. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 08期

关键词：

NANOTUBES; NANORIBBONS; MICROTUBULES; SHEETS; FORM;

D O I：

10.1103/PhysRevLett.103.086801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the transport properties of novel carbon nanostructures made of partially unzipped carbon nanotubes, which can be regarded as a seamless junction of a tube and a nanoribbon. We find that graphene nanoribbons act at certain energy ranges as perfect valley filters for carbon nanotubes, with the maximum possible conductance. Our results show that a partially unzipped carbon nanotube is a magnetoresistive device, with a very large value of magnetoresistance. We explore the properties of several structures combining nanotubes and graphene nanoribbons, demonstrating that they behave as optimal contacts for each other, and opening a new route for the design of mixed graphene-nanotube devices.

引用

页数：4

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