Generalizing the Cooper-pair instability to doped Mott insulators
Abstract
Copper oxides become superconductors rapidly upon doping with electron holes, suggesting a fundamental pairing instability. The Cooper mechanism explains normal superconductivity as an instability of a fermi-liquid state, but high-temperature superconductors derive from a Mott-insulator normal state, not a fermi liquid. We show that precocity to pair condensation with doping is a natural property of competing antiferromagnetism and d-wave superconductivity on a singly-occupied lattice, thus generalizing the Cooper instability to doped Mott insulators, with significant implications for the high-temperature superconducting mechanism.
- Publication:
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Frontiers of Physics in China
- Pub Date:
- June 2010
- DOI:
- Bibcode:
- 2010FrPhC...5..171G
- Keywords:
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- Cooper-pair instability;
- high-temperature superconductivity;
- SU(4) model