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A possible mechanism of highT csuperconductivity involving biexcitons

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
73
Issue
1
Identifiers
DOI: 10.1016/0038-1098(90)90012-z
Disciplines
  • Physics

Abstract

Abstract A new mechanism for high T c superconductors involving biexcitons resulting from the possible electronic polarization of the surrounding medium in which Cu-O layers are embedded is proposed. It is a variant of the correlated charge (pair) transfer mechanism proposed by Sinha and Singh recently. It is argued that this process may take precedence over the correlated charge transfer (pair) mechanism if the energies of the states of the complex O 2--Cu 3+-O 2- and O 1--Cu +1-O -1 are nearly degenerate.

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