High-Tc superconducting cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25)O6+d: Tc-increase with apical Cu-O decrease at constant Cu-O planar distance

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMarezio, M.
dc.contributor.authorChmaissem, O.
dc.contributor.authorBougerol, C.
dc.contributor.authorKarppinen, M.
dc.contributor.authorYamauchi, H.
dc.contributor.authorGeballe, T.H.
dc.contributor.departmentDepartment of Chemistryen
dc.date.accessioned2018-05-22T14:45:35Z
dc.date.available2018-05-22T14:45:35Z
dc.date.issued2014
dc.description.abstractEvidence for high-Tc cuprate superconductivity is found in a region of the phase diagram where non-superconducting Fermi liquid metals are expected. Cu valences estimated independently from both XANES measurements and bond valence sum calculations are greater than 2.25 and are in close agreement with each other for structures of the homologous series given in the title with s = 1, 2, 3, 4 and 5. Two questions arise from the present perspective: 1) Is all the action in the CuO2 layers? 2) Is there superconductivity beyond the usual dome? The record short apical oxygen distance found in the homologous series especially in the s = 1 member, at odds with the current theory, suggests the possibility of a new pairing mechanism. The apical Cu-O distance in the s = 1 member decreases upon oxygenation from 2.29 to 2.15 dot A while the Cu valence increases to 2.45 dot A.en
dc.description.versionPeer revieweden
dc.format.extent1-4
dc.format.mimetypeapplication/pdf
dc.identifier.citationMarezio , M , Chmaissem , O , Bougerol , C , Karppinen , M , Yamauchi , H & Geballe , T H 2014 , ' High-Tc superconducting cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25)O6+d: Tc-increase with apical Cu-O decrease at constant Cu-O planar distance ' , Journal of Physics: Conference Series , vol. 507 , no. 1 , 012031 , pp. 1-4 . https://doi.org/10.1088/1742-6596/507/1/012031en
dc.identifier.doi10.1088/1742-6596/507/1/012031
dc.identifier.issn1742-6588
dc.identifier.issn1742-6596
dc.identifier.otherPURE UUID: af7b9c19-5719-4c59-8681-085bd940ff83
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/af7b9c19-5719-4c59-8681-085bd940ff83
dc.identifier.otherPURE LINK: http://dx.doi.org/10.1088/1742-6596/507/1/012031
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/14764671/Marezio_2014_J._Phys._Conf._Ser._507_012031.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/31109
dc.identifier.urnURN:NBN:fi:aalto-201805222549
dc.language.isoenen
dc.relation.ispartofseriesJournal of Physics: Conference Seriesen
dc.relation.ispartofseriesVolume 507, issue 1en
dc.rightsopenAccessen
dc.titleHigh-Tc superconducting cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25)O6+d: Tc-increase with apical Cu-O decrease at constant Cu-O planar distanceen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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