Generalizing the Cooper-Pair Instability to Doped Mott Insulators

Details Generalizing the Cooper-Pair Instability to Doped Mott Insulators Generalizing the Cooper-Pair Instability to Doped Mott Insulators

2008-10-21

arxiv.org/abs/0810.3862v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure

Scientific paper

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.

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