Superconductivity in thin films of boron-doped carbon nanotubes

被引：70

作者：

Murata, N. ^{[1
]}

Haruyama, J. ^{[1
,2
,5
]}

Reppert, J. ^{[3
]}

Rao, A. M. ^{[3
]}

Koretsune, T. ^{[4
]}

Saito, S. ^{[4
]}

Matsudaira, M. ^{[1
]}

Yagi, Y. ^{[5
]}

机构：

[1] Aoyama Gakuin Univ, Sch Sci & Engn Mat Sci Course, Kanagawa 2298558, Japan

[2] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[3] Clemson Univ, Dept Phys & Astron, Ctr Opt Mat Sci & Engn Technol, Clemson, SC 29634 USA

[4] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

[5] JST CREST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.101.027002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Superconductivity in carbon nanotubes (CNTs) is attracting considerable attention. However, its correlation with carrier doping has not been reported. We report on the Meissner effect found in thin films consisting of assembled boron (B)-doped single-walled CNTs (B-SWNTs). We find that only B-SWNT films consisting of low boron concentration leads to evident Meissner effect with T-c = 12 K and also that a highly homogeneous ensemble of the B-SWNTs is crucial. The first-principles electronic-structure study of the B-SWNTs strongly supports these results.

引用

页数：4

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