High-Tc Superconducting Cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25 )O6+[delta] : Tc-increase with apical Cu-O decrease at constant Cu-O planar distance

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMarezio, M
dc.contributor.authorChmaissem, O
dc.contributor.authorBougerol, C
dc.contributor.authorKarppinen, Maarit
dc.contributor.authorYamauchi, H
dc.contributor.authorGeballe, T H
dc.contributor.departmentKemian laitosfi
dc.contributor.departmentDepartment of Chemistryen
dc.contributor.schoolKemian tekniikan korkeakoulufi
dc.contributor.schoolSchool of Chemical Technologyen
dc.date.accessioned2015-10-14T09:01:54Z
dc.date.available2015-10-14T09:01:54Z
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.extent012031/1-4
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMarezio, M & Chmaissem, O & Bougerol, C & Karppinen, Maarit & Yamauchi, H & Geballe, T H. 2014. High-Tc Superconducting Cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25 )O6+[delta] : Tc-increase with apical Cu-O decrease at constant Cu-O planar distance. Journal of Physics: Conference Series. Volume 507, Issue 1. 012031/1-4. ISSN 1742-6588 (printed). DOI: 10.1088/1742-6596/507/1/012031.en
dc.identifier.doi10.1088/1742-6596/507/1/012031
dc.identifier.issn1742-6588 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/18020
dc.identifier.urnURN:NBN:fi:aalto-201510144608
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.ispartofseriesJournal of Physics: Conference Seriesen
dc.relation.ispartofseriesVolume 507, Issue 1
dc.rights© 2014 IOP Publishing. This is the accepted version of the following article: Marezio, M & Chmaissem, O & Bougerol, C & Karppinen, Maarit & Yamauchi, H & Geballe, T H. 2014. High-Tc Superconducting Cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25 )O6+[delta] : Tc-increase with apical Cu-O decrease at constant Cu-O planar distance. Journal of Physics: Conference Series. Volume 507, Issue 1. 012031/1-4. ISSN 1742-6588 (printed). DOI: 10.1088/1742-6596/507/1/012031, which has been published in final form at http://iopscience.iop.org/article/10.1088/1742-6596/507/1/012031/meta. This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/).en
dc.rights.holderIOP Publishing
dc.subject.keywordcuprateen
dc.subject.keywordsuperconductivityen
dc.subject.otherChemistryen
dc.titleHigh-Tc Superconducting Cuprates, (Ce,Y)sO2s-2Sr2(Cu2.75Mo0.25 )O6+[delta] : Tc-increase with apical Cu-O decrease at constant Cu-O planar distanceen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
Files