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dc.contributor.authorKulik, Igor Orestovichen_US
dc.date.accessioned2016-02-08T10:49:26Z
dc.date.available2016-02-08T10:49:26Z
dc.date.issued1996en_US
dc.identifier.issn1300-0101en_US
dc.identifier.urihttp://hdl.handle.net/11693/25712
dc.description.abstractAnion network in the CuO2 plane of metal-oxide compound is considered as an intrinsic-hole metal with holes rather than electrons comprising a Fermi liquid immersed in the background of negative O2- ions. Due to the contraction of p-orbital of oxygen as a result of occupation by a hole, hole hopping between nearest neighbor sites (i, j) is dependent upon hole occupation as tij,σ = to + Vni,-σnj,-σ = W(ni,-σ + nj,-σ). Coupling parameters W and V (additive and multiplicative "contraction interaction" terms) result in the binding of holes into singlet, on-site configuration, or into triplet, nearest-neighbor-site configuration, due to W and V respectively. In the weak coupling limit, W results in the BCS type of superconductive pairing (singlet, s-wave), whereas multiplicative contraction V provides for either singlet, d-wave, or triplet, p-wave-like pairing states. It is concluded that the latter state may result in a plausible mechanism for high-Tc superconductivity in metal oxide compounds. The superconducting p-phase is shown to be in accord with recently published symmetry tests of the order parameter in oxides.en_US
dc.language.isoEnglishen_US
dc.source.titleTurkish Journal of Physicsen_US
dc.subjectElectron energy levelsen_US
dc.subjectHigh temperature superconductorsen_US
dc.subjectIonsen_US
dc.subjectSuperconductivityen_US
dc.subjectAtomic orbitalsen_US
dc.subjectMetal oxide compoundsen_US
dc.subjectOxygen anion networken_US
dc.subjectOxide superconductorsen_US
dc.titleContraction of atomic orbitals in the oxygen anion network and superconductivity in metal oxide compoundsen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage627en_US
dc.citation.epage654en_US
dc.citation.volumeNumber20en_US
dc.citation.issueNumber6en_US
dc.publisherScientific and Technical Research Council of Turkey - TUBITAK,Turkiye Bilimsel ve Teknik Arastirma Kurumuen_US
dc.identifier.eissn1303-6122en_US


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