Show simple item record

dc.contributor.authorKimball, C. W.en
dc.contributor.authorMatykiewicz, J. L.en
dc.contributor.authorLee, H.en
dc.contributor.authorGiapintzakis, Johnen
dc.contributor.authorDwight, A. E.en
dc.contributor.authorDunlap, B. D.en
dc.contributor.authorJorgensen, J. D.en
dc.contributor.authorVeal, B. W.en
dc.contributor.authorFradin, F. Y.en
dc.creatorKimball, C. W.en
dc.creatorMatykiewicz, J. L.en
dc.creatorLee, H.en
dc.creatorGiapintzakis, Johnen
dc.creatorDwight, A. E.en
dc.creatorDunlap, B. D.en
dc.creatorJorgensen, J. D.en
dc.creatorVeal, B. W.en
dc.creatorFradin, F. Y.en
dc.date.accessioned2019-05-06T12:23:53Z
dc.date.available2019-05-06T12:23:53Z
dc.date.issued1988
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/48491
dc.description.abstractMössbauer effect studies have been made as a function of temperature for the orthorhombic (χ=0.01, 0.02) and tetragonal (χ=0.05) superconducting compounds YBa2(Cu1-χ57Feχ)3O7 + y. For Fe in or slightly displaced from the Cu1 (000) site, temperature dependent measurements yield Debye temperatures for the Mössbauer shift θδ in the range of 601 to 698 K and for the resonant fraction θf in the range from 333 to 568 K, depending on the local oxygen configuration. Very little change is observed in the region of the superconducting transition Tc for the orthorhombic phase samples, but both phonon and electronic changes occur near Tc in the tetragonal phase. The vibrational behavior of Fe in the Cu1 site shows a dramatic hardening near and below Tc in tetragonal YBa2(Cu0.95Fe0.05)3O7.1. The quadrupolar splitting EQ indicates a change in field gradient in this same temperature region. The Mössbauer shift also behaves anomalously near Tc. © 1988.en
dc.language.isoengen
dc.sourcePhysica C: Superconductivity and its applicationsen
dc.subjectOxidesen
dc.subjectMossbaueren
dc.subjectSpectroscopyen
dc.subjectCeramic Materialsen
dc.subjectElectronic Behavioren
dc.subjectMossbauer Effect Measurementsen
dc.subjectSuperconducting Materialsen
dc.subjectVibrational Behavioren
dc.subjectYttrium Barium Copper Iron Oxidesen
dc.titleVibrational and electronic anomalies near Tc in tetragonal superconducting YBa2(Cu0.9557Fe0.05)3O7.1en
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/0921-4534(88)90019-6
dc.description.volume156
dc.description.startingpage547
dc.description.endingpage554
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeArticleen
dc.contributor.orcidGiapintzakis, John [0000-0002-7277-2662]
dc.description.totalnumpages547-554
dc.gnosis.orcid0000-0002-7277-2662


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record