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Title: Superconductivity in 4-Angstrom carbon nanotubes
Authors: Sheng, Ping
Tang, Zi-Kang
Zhang, Lingyun
Wang, Ning
Zhang, Xixiang
Wen, G. H.
Li, G. D.
Wang, Jiannong
Chan, Che-Ting
Keywords: Single-walled carbon nanotubes
Issue Date: 2001
Citation: Nano Science and Technology : Novel Structures and Phenomena, 2nd Croucher ASI on Nano Science and Technology, HKUST, Hong Kong. Taylor and Francis, 2003. p. 128-136
Abstract: 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 AIPO4-5 single crystals. These unltra-small 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 the 1D BCS (phonon-mediated) superconductor.
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