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arXiv · 0802.1011

Quantum critical transition from charge-ordered to superconducting state in the triangular lattice negative-U extended Hubbard model

S. Mazumdar·R. T. Clay
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Abstract

We demonstrate a robust frustration-driven charge-order to superconductivity transition in the half-filled negative-U extended Hubbard model. Superconductivity extends over a broad region of the parameter space. We argue that the model provides the correct insight to understanding unconventional superconductivity in the organic charge-transfer solids and other quarter-filled systems.

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S. Mazumdar, R. T. Clay. 2008-02-07. Quantum critical transition from charge-ordered to superconducting state in the triangular lattice negative-U extended Hubbard model. https://doi.org/10.1103/physrevb.77.180515

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