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dc.contributor.authorLuan, Lan
dc.contributor.authorLippman, Thomas M
dc.contributor.authorHicks, Clifford William
dc.contributor.authorBert, Julie A
dc.contributor.authorAuslaender, Ophir M
dc.contributor.authorChu, Jiun-Haw
dc.contributor.authorAnalytis, James G
dc.contributor.authorFisher, Ian R
dc.contributor.authorMoler, Kathryn A
dc.identifier.citationLuan , L , Lippman , T M , Hicks , C W , Bert , J A , Auslaender , O M , Chu , J-H , Analytis , J G , Fisher , I R & Moler , K A 2011 , ' Local measurement of the superfluid density in the pnictide superconductor Ba(Fe 1-x Cox 2 )As 2 across the superconducting dome ' , Physical Review Letters , vol. 106 , no. 6 , 067001 .
dc.identifier.otherPURE: 35737674
dc.identifier.otherPURE UUID: b953b94f-4e3f-41fc-a1c7-4a2b53fb8df9
dc.identifier.otherScopus: 79751492634
dc.description.abstractWe measure the penetration depth λab(T) in Ba(Fe1-xCox)2As2 using local techniques that do not average over the sample. The superfluid density ρs(T)≡1/λab(T)2 has three main features. First, ρs(T=0) falls sharply on the underdoped side of the dome. Second, λab(T) is flat at low T at optimal doping, indicating fully gapped superconductivity, but varies more strongly in underdoped and overdoped samples, consistent with either a power law or a small second gap. Third, ρs(T) varies steeply near Tc for optimal and underdoping. These observations are consistent with an interplay between magnetic and superconducting phases.
dc.relation.ispartofPhysical Review Lettersen
dc.rights© 2011 American Physical Societyen
dc.subjectQC Physicsen
dc.titleLocal measurement of the superfluid density in the pnictide superconductor Ba(Fe1-xCox2)As2 across the superconducting domeen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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