Investigation of electrical transport in hydrogenated multiwalled carbon nanotubes

被引：12

作者：

Friedman, Adam L. ^{[1
,2
]}

Chun, Hyunkyung ^{[3
]}

Heiman, Don ^{[2
]}

Jung, Yung Joon ^{[3
]}

Menon, Latika ^{[2
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

[2] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[3] Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA

来源：

PHYSICA B-CONDENSED MATTER | 2011年 / 406卷 / 04期

基金：

美国国家科学基金会;

关键词：

Carbon nanotubes; Electrical transport; Ferromagnetism; Carbon;

D O I：

10.1016/j.physb.2010.12.009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Highly disordered multiwalled carbon nanotubes of large outer diameter (similar to 60 nm) fabricated by means of chemical vapor deposition process inside porous alumina templates exhibit ferromagnetism when annealed in a H-2/Ar atmosphere. In the presence of an applied magnetic field, there is a transition from positive to negative magnetoresistance. The transition may be explained in terms of the Bright model for ordered and disordered carbon structures. Additionally, temperature dependent electrical transport experiments exhibit a zero-bias anomaly at low temperature. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：841 / 845

页数：5

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