Composition dependence of superconductivity in YBa₂(Cu1-xAx)₃O6+δ system with A = Zn, Ni

dc.contributor.authorSong, Qianen
dc.contributor.departmentPhysicsen
dc.date.accessioned2014-03-14T21:33:34Zen
dc.date.adate2010-04-12en
dc.date.available2014-03-14T21:33:34Zen
dc.date.issued1987en
dc.date.rdate2010-04-12en
dc.date.sdate2010-04-12en
dc.description.abstractThe results of substitution of A (with A = Ni and Zn) for Cu are presented in the high Tc superconductors, YBa₂(Cu<sub>1 - x</sub>A<sub>x</sub>)₃O<sub>6 + δ</sub> where x < 0.03 for Zn and x< 0.10 for Ni. We have observed that the superconducting temperature in the high Tc YBa₂Cu₃O<sub>6 + δ</sub> as system decreases if copper is substituted by Ni and Zn and the substitution of Zn affects Tc much more than Ni. We discuss our results in terms of pair breaking by magnetic impurities and in terms of the Resonance Valence Bond model proposed by Anderson.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 50 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04122010-083602en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04122010-083602/en
dc.identifier.urihttp://hdl.handle.net/10919/42032en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1987.S625.pdfen
dc.relation.isformatofOCLC# 17604899en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.S625en
dc.subject.lcshSuperconductivityen
dc.titleComposition dependence of superconductivity in YBa₂(Cu<sub>1-x</sub>A<sub>x</sub>)₃O<sub>6+δ</sub> system with A = Zn, Nien
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplinePhysicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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