Publication:
Effects of elemental substitution involving V and Cr on superconductivity of (Tl,Bi)Sr2(Ca,Y)Cu2O7 ceramics

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dc.citedby16
dc.contributor.authorHamid N.A.en_US
dc.contributor.authorMusa B.en_US
dc.contributor.authorYahya A.K.en_US
dc.contributor.authorJumali M.H.en_US
dc.contributor.authorAbd-Shukor R.en_US
dc.contributor.authorid6604077116en_US
dc.contributor.authorid7004857531en_US
dc.contributor.authorid56209483900en_US
dc.contributor.authorid6507916538en_US
dc.contributor.authorid7004750914en_US
dc.date.accessioned2023-12-28T08:57:59Z
dc.date.available2023-12-28T08:57:59Z
dc.date.issued2004
dc.description.abstractCr and V substituted Tl1212 type phase high temperature superconductors with nominal starting compositions Tl0.9Bi0.1Sr 2-xCrxCa0.9Y0.1Cu2O 7 (x=0-0.5) and Tl0.9Bi0.1Sr 2-yVyCa0.9Y0.1Cu2O 7 (y=0-0.5) have been prepared and characterized. Powder X-ray diffraction patterns showed all samples consist of major 1212 phase and minor 1201 phase. For Tl0.9Bi0.1Sr2-xCr xCa0.9Y0.1Cu2O7, normal state resistance changes from metallic behavior (x=0-0.3) to semi-metallic behavior (x=0.4) and semiconductor-like behavior (x=0.5). Tczero gradually increased from 50K (x=0) to a maximum value of 78K at x=0.3 before decreasing with further Cr substitution. The x=0.5 sample was non-superconducting. For Tl0.9Bi0.1Sr2-yV yCa0.9Y0.1Cu2O7, normal state resistance changes from metallic behavior (y=0-0.3) to semi-metallic behavior (y=0.4) and semiconductor-like behavior (y=0.5). Tczero increased from 50K (y=0) to a maximum value of 76K (y=0.2) before decreasing to 62K (y=0.3). Samples with y=0.4 and 0.5 were non-superconducting. The effects of Cr and V substitutions are discussed in terms of ionic radius of dopants and the concept of average Cu valence. � 2004 Elsevier Ltd. and Techna Group S.r.l. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.ceramint.2003.12.194
dc.identifier.epage1589
dc.identifier.issue7
dc.identifier.scopus2-s2.0-4344680592
dc.identifier.spage1585
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-4344680592&doi=10.1016%2fj.ceramint.2003.12.194&partnerID=40&md5=6469e49c191c4cf9cb47e38880eec387
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/29865
dc.identifier.volume30
dc.pagecount4
dc.sourceScopus
dc.sourcetitleCeramics International
dc.subjectC. Electrical properties
dc.subjectC. Superconductivity
dc.subjectD. Oxide superconductors
dc.subjectChromium compounds
dc.subjectComposition
dc.subjectCopper compounds
dc.subjectDoping (additives)
dc.subjectElectric properties
dc.subjectElectric resistance
dc.subjectOxide superconductors
dc.subjectSubstitution reactions
dc.subjectSuperconductivity
dc.subjectVanadium compounds
dc.subjectX ray diffraction analysis
dc.subjectDopants
dc.subjectHole carriers
dc.subjectIonic radius
dc.subjectNormal state resistance
dc.subjectCeramic materials
dc.titleEffects of elemental substitution involving V and Cr on superconductivity of (Tl,Bi)Sr2(Ca,Y)Cu2O7 ceramicsen_US
dc.typeConference paperen_US
dspace.entity.typePublication
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