Abstract
We propose that oxygen defects provide a mechanism for pairing enhancement in oxide-defect superconductors. A model is formulated and mean-field Gorkov equations are derived and solved numerically for a two-dimensional realization of the model. We show that very high-temperature critical temperatures are not difficult to understand in such models. Several experimental features of the superconducting oxides, including spin-glass-like properties, sensitivity to oxygen concentration, and temperature dependence of positron annihilation times, appear to be qualitatively consistent with such a model.
Original language | English (US) |
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Pages (from-to) | 525-528 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 37 |
Issue number | 1 |
DOIs | |
State | Published - 1988 |
Bibliographical note
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