A valley-filtering switch based on the Stone-Wales defect array in carbon nanotube

被引：1

作者：

Lu, Xiaoling ^{[1
]}

Yu, Guodong ^{[1
]}

Yao, Haibo ^{[1
]}

Zheng, Yisong ^{[1
]}

机构：

[1] Jilin Univ, Dept Phys, Natl Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

EPL | 2013年 / 103卷 / 04期

关键词：

GRAPHENE;

D O I：

10.1209/0295-5075/103/47008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We theoretically demonstrate that valley-filtering switch can be realized in a carbon nanotube (CNT) embedded with a series of Stone-Wales defects. It is due to the fact that such a CNT shows two peculiar subbands which span two Dirac valleys without nontrivial dispersion, just like the flat-bottomed subbands of a zigzag-edged graphene nanoribbon. Considering that similar defects have been experimentally patterned in a CNT in a controllable way, this kind of CNT is a promising device prototype for valleytronic applications. Copyright (C) EPLA, 2013

引用

页数：6

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