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dc.contributor.authorZhang, Bing
dc.contributor.authorLiu, Yang
dc.contributor.authorChen, Qihong
dc.contributor.authorLai, Zhiping
dc.contributor.authorSheng, Ping
dc.date.accessioned2017-03-05T06:13:15Z
dc.date.available2017-03-05T06:13:15Z
dc.date.issued2017-02-14
dc.identifier.citationZhang B, Liu Y, Chen Q, Lai Z, Sheng P (2017) Observation of high Tc one dimensional superconductivity in 4 angstrom carbon nanotube arrays. AIP Advances 7: 025305. Available: http://dx.doi.org/10.1063/1.4976847.
dc.identifier.issn2158-3226
dc.identifier.doi10.1063/1.4976847
dc.identifier.urihttp://hdl.handle.net/10754/622959
dc.description.abstractThe only known approach to fabricate large, uniform arrays of 4-Å single wall carbon nanotubes (SWNTs) is by using zeolite crystals as the template, in which the nanotubes are formed by chemical vapor deposition inside the linear channels of the AlPO-5 (AFI for short) zeolite. However, up to now the pore filling factor has been very low, as evidenced by the weight percentage of carbon in thermal gravimetric analysis (TGA) measurements. In this work, we show that by using a new, micro-platelet AFI crystals as the template, combined with the use of a new CVD process, we can increase the TGA result to 22.5wt%, which translates to a pore filling factor of 91%. We have observed one dimensional (1D) superconductivity in such samples. The temperature dependence of resistance shows a smooth decreasing trend below 60 K, and the differential resistance displays a gap that disappears above the 1D superconducting initiation temperature. The observed behaviour is shown to agree very well with the theoretical predictions of 1D superconductivity.
dc.description.sponsorshipThis work has been supported by the Research Grants Council of Hong Kong, Grants HKUST9/CRF/08 and RGC 16304314.
dc.publisherAIP Publishing
dc.relation.urlhttp://aip.scitation.org/doi/10.1063/1.4976847
dc.rightsAll article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleObservation of high Tc one dimensional superconductivity in 4 angstrom carbon nanotube arrays
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAIP Advances
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
kaust.personLiu, Yang
kaust.personLai, Zhiping
refterms.dateFOA2018-06-13T16:51:16Z
dc.date.published-online2017-02-14
dc.date.published-print2017-02


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All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).