Polarization-induced pairing in high-temperature superconductivity

Callaway, J. ; Kanhere, D. G. ; Misra, P. K. (1987) Polarization-induced pairing in high-temperature superconductivity Physical Review B, 36 (13). pp. 7141-7144. ISSN 0163-1829

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Official URL: http://prb.aps.org/abstract/PRB/v36/i13/p7141_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.36.7141


We propose a mechanism for the pairing of electrons at the copper sites on the spine of quasi-one-dimensional Cu-O chains induced by the electronic polarization of the oxygen atoms in the side chains. We use a model Hamiltonian for a cluster of Cu-O chains and calculate the various correlation functions for a wide range of parameters. We examine the conditions for the onset of polarization-induced pairing states. Our results may be relevant to high-Tc superconductor YBa2Cu3O7-x.

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