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1、PAPER•OPENACCESSRelatedcontent-UnconventionalPairingStateinWeaklyEvidencefortwo-gapsuperconductivityinthenon-CorrelatedNon-centrosymmetricSuperconductorscentrosymmetriccompoundLaNiC2JChenandHQYuan-Areviewoftwo-bandsuperconductivity:materialsandeffectsontheTocitethisarticle:JChenetal2013NewJ.Phys
2、.15053005thermodynamicandreversiblemixed-statepropertiesMZehetmayer-Superconductivityandspin–orbitcouplinginnon-centrosymmetricmaterials:areviewViewthearticleonlineforupdatesandenhancements.MSmidman,MBSalamon,HQYuanetal.Recentcitations-Multigapsuperconductivityinthechargedensitywavesuperconducto
3、rLaPt2Si2DebarchanDasetal-Mean-fieldanalysisonthemagneticpropertiesofnon-centrosymmetricsuperconductorLaNiC2Jia-LiZhang-Nodelesssuperconductivityandtime-reversalsymmetrybreakinginthenoncentrosymmetricsuperconductorRe24Ti5T.ShangetalThiscontentwasdownloadedfromIPaddress117.178.4.32on06/09/2018at0
4、2:16Evidencefortwo-gapsuperconductivityinthenon-centrosymmetriccompoundLaNiC2JChen1,LJiao1,JLZhang1,2,YChen1,LYang1,MNicklas2,FSteglich2andHQYuan1,31DepartmentofPhysicsandCenterforCorrelatedMatter,ZhejiangUniversity,Hangzhou,Zhejiang310027,People’sRepublicofChina2MaxPlanckInstituteforChemicalPhy
5、sicsofSolids,D-01187Dresden,GermanyE-mail:hqyuan@zju.edu.cnNewJournalofPhysics15(2013)053005(16pp)Received20October2012Published7May2013Onlineathttp://www.njp.org/doi:10.1088/1367-2630/15/5/053005Abstract.Westudythesuperconductingpropertiesofthenon-centrosymmetriccompoundLaNiC2bymeasuringtheLond
6、onpenetrationdepth1k(T),thespecificheatC(T,B)andtheelectricalresistivityρ(T,B).Both1λ(T)andtheelectronicspecificheatCe(T)exhibitbehavioratlowtemperaturesthatcanbedescribedintermsofaphenomenologicaltwo-gapBardeen–Cooper–Schrieffer(BCS)model.TheresidualSommerfeldcoefficientinthesuperconductingstate,γ
7、0(B),showsarapidincreaseatlowfieldsandthenaneventualsaturationwithincreasingmagneticfield.ApronouncedupturncurvatureisobservedintheuppercriticalfieldBc2(T)nearTc.Alltheseexperimentalobservationssupporttheexistenceoftwo-gapsuper
