Cooper pairing in double asymmetric electron layer systems

The BSC theory is extended to the case of some copper-oxide superconductors with two crystal structure features: the Cu-O layers in which the superconducting current mainly flows have the asymmetric nearest neighborhood and they are grouped in pairs. The symmetry of such structures allows the antipy...

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Bibliographic Details
Published inSolid state communications Vol. 77; no. 11; pp. 859 - 863
Main Author Edelstein, V.M.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.03.1991
Elsevier
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Superconductivity
Theory and models of superconducting state
Lamellar compound
Order parameter
Transition metal Compounds
Spin susceptibility
Cooper pair
Superconductivity
Theoretical study
Pyroelectric effect
Copper Oxides Mixed
High temperature superconductor
Inorganic compound
BCS theory
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Summary:The BSC theory is extended to the case of some copper-oxide superconductors with two crystal structure features: the Cu-O layers in which the superconducting current mainly flows have the asymmetric nearest neighborhood and they are grouped in pairs. The symmetry of such structures allows the antipyroelectricity phenomenon, i.e. the existence of intra-crystalline electric field perpendicular to the layers and oppositely directed in adjacent layers. The superconductivity of one double electron layer is considered: the order parameter matrix and the quasiparticle excitation spectrum are obtained, and finite value of spin susceptibility at zero temperature is found.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(91)90820-L