Flux pinning mechanisms in graphene-doped MGB2 superconductors

De Silva, KSB; Xu, X; Gambhir, S; Wang, XL; Li, WX; Wallaceb, GG; Doua, SX

Flux pinning mechanisms in graphene-doped MGB2 superconductors

De Silva, KSB

Xu, X Gambhir, S Wang, XL Li, WX Wallaceb, GG Doua, SX

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Publication Type:: Journal Article
Citation:: Scripta Materialia, 2011, 65 (7), pp. 634 - 637
Issue Date:: 2011-01-01

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Field	Value	Language
dc.contributor.author	De Silva, KSB https://orcid.org/0000-0002-3242-4858	en_US
dc.contributor.author	Xu, X	en_US
dc.contributor.author	Gambhir, S	en_US
dc.contributor.author	Wang, XL	en_US
dc.contributor.author	Li, WX	en_US
dc.contributor.author	Wallaceb, GG	en_US
dc.contributor.author	Doua, SX	en_US
dc.date.issued	2011-01-01	en_US
dc.identifier.citation	Scripta Materialia, 2011, 65 (7), pp. 634 - 637	en_US
dc.identifier.issn	1359-6462	en_US
dc.identifier.uri	http://hdl.handle.net/10453/111501
dc.description.abstract	The effects of graphene doping on the superconducting properties of MgB2 were studied. We found that small addition of graphene significantly improves the superconducting properties of MgB2, with only a small reduction in Tc. Low resistivity, high critical fields and enhanced flux-flow activation energy were observed for the optimally doped bulk sample. The spatial fluctuation in the transition temperature (dTc pinning) is the flux pinning mechanism in graphene-doped MgB2. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	Scripta Materialia	en_US
dc.relation.isbasedon	10.1016/j.scriptamat.2011.06.047	en_US
dc.subject.classification	Materials	en_US
dc.title	Flux pinning mechanisms in graphene-doped MGB2 superconductors	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	65	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0204 Condensed Matter Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	65	en_US

Abstract:

The effects of graphene doping on the superconducting properties of MgB2 were studied. We found that small addition of graphene significantly improves the superconducting properties of MgB2, with only a small reduction in Tc. Low resistivity, high critical fields and enhanced flux-flow activation energy were observed for the optimally doped bulk sample. The spatial fluctuation in the transition temperature (dTc pinning) is the flux pinning mechanism in graphene-doped MgB2. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/111501