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Superconductivity in bundles of double-wall carbon nanotubes
Shi W.1; Wang Z.1; Zhang Q.1; Zheng Y.1; Ieong C.1; He M.1; Lortz R.1; Cai Y.1; Wang N.1; Zhang T.1; Zhang H.1; Tang Z.1; Sheng P.1; Muramatsu H.2; Kim Y.A.2; Endo M.2; Araujo P.T.3; Dresselhaus M.S.3
2012-09-17
Source PublicationScientific Reports
ISSN20452322
Volume2
AbstractWe present electrical and thermal specific heat measurements that show superconductivity in double-wall carbon nanotube (DWCNT) bundles. Clear evidence, comprising a resistance drop as a function of temperature, magnetoresistance and differential resistance signature of the supercurrent, suggest an intrinsic superconducting transition below 6.8ĝ€...K for one particular sample. Additional electrical data not only confirm the existence of superconductivity, but also indicate the T c distribution that can arise from the diversity in the diameter and chirality of the DWCNTs. A broad superconducting anomaly is observed in the specific heat of a bulk DWCNT sample, which yields a T c distribution that correlates well with the range of the distribution obtained from the electrical data. As quasi one dimensionality of the DWCNTs dictates the existence of electronic density of state peaks, confirmation of superconductivity in this material system opens the exciting possibility of tuning the T c through the application of a gate voltage.
DOI10.1038/srep00625
URLView the original
Language英語
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Cited Times [WOS]:28   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Hong Kong University of Science and Technology, William Mong Institute of Nano Science & Technology
2.Shinshu University
3.Massachusetts Institute of Technology
4.Princeton University
Recommended Citation
GB/T 7714
Shi W.,Wang Z.,Zhang Q.,et al. Superconductivity in bundles of double-wall carbon nanotubes[J]. Scientific Reports,2012,2.
APA Shi W..,Wang Z..,Zhang Q..,Zheng Y..,Ieong C..,...&Dresselhaus M.S..(2012).Superconductivity in bundles of double-wall carbon nanotubes.Scientific Reports,2.
MLA Shi W.,et al."Superconductivity in bundles of double-wall carbon nanotubes".Scientific Reports 2(2012).
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