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Superconductivity in 4-angstrom Carbon Nanotubes

Authors Sheng, Ping
Tang, Zikang
Zhang, Lingyun
Wang, Ning
Zhang, Xixiang
Wen, Gehui
Li, Guodong
Wang, Jiannong
Chan, Che Ting
Issue Date 2003
Source Nano Science and Technology : Novel Structures and Phenomena , March 2003, p. 128-136
Summary We report the observation of intrinsic one-dimensional (ID) superconductivity in 0.4 nm-sized single-walled carbon nanotubes (SWNTs), fabricated by pyrolyzing tripropylamine in the channels of zeolite AlPO4-5 single crystals. These ultrasmall SWNTs are highly aligned, uniform in size, and isolated from each other. They constitute an almost ideal 1D conducting system. The superconductivity of these ultra-small exhibits one-dimensional fluctuations, and displays smooth temperature variations with a mean-field superconducting transition temperature of 15 K. The data are consistent with the manifestations of a 1D BCS (phonon-mediated) superconductor.
Note 2nd Croucher ASI on Nano Science and Technology, Kowloon Hong Kong, 2002
ISBN 9780415308328
Language English
Format Conference paper
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