Ultra-small single-walled carbon nanotubes and their superconductivity properties
Tang Z.K.; Zhang L.Y.; Wang N.; Zhang X.X.; Wang J.N.; Li G.D.; Li Z.M.; Wen G.H.; Chan C.T.; Sheng P.
Source PublicationSynthetic Metals
AbstractUltra-small single-walled carbon nanotubes (SWNTs) are successfully fabricated in the channels of zeolite AlPO-5 (AFI) single crystals by pyrolysis of tripropylamine molecules in the channels. These nanotubes have been observed directly by transmission electron microscopy, as well as by diffuse X-ray scattering and micro-Raman measurements of the nanotube breathing mode. The data consistently indicate a nanotube diameter of as small as 0.4 nm, probably at or close to the theoretical limit. These mono-sized small nanotubes perhaps constitute the best example of one-dimensional (1-D) quantum wires. They show novel electronic properties. Investigation of the magnetic and transport properties of single-walled small diameter carbon nanotubes embedded in a zeolite matrix revealed that at temperatures below 20 K, 0.4 nm tubes exhibit superconducting behavior manifest as an anisotropic Meissner effect, with a superconducting gap and fluctuation super-current. The measured superconducting characteristics display smooth temperature variations owing to 1-D fluctuations, with a mean field superconducting transition temperature of 15 K. © 2002 Elsevier Science B.V. All rights reserved.
KeywordNanotubes Superconductivity SWNT
URLView the original
Fulltext Access
Citation statistics
Cited Times [WOS]:17   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology, William Mong Institute of Nano Science & Technology
Recommended Citation
GB/T 7714
Tang Z.K.,Zhang L.Y.,Wang N.,et al. Ultra-small single-walled carbon nanotubes and their superconductivity properties[C],2003:689-693.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tang Z.K.]'s Articles
[Zhang L.Y.]'s Articles
[Wang N.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tang Z.K.]'s Articles
[Zhang L.Y.]'s Articles
[Wang N.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tang Z.K.]'s Articles
[Zhang L.Y.]'s Articles
[Wang N.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.