Schedule Oct 02, 2014
Superconducting order parameters and phase diagrams of organic superconductors
Stuart Brown, UCLA & KITP

n 1979, the first organic superconductor, (TMTSF)2PF6, was discovered. The superconducting state of this quasi-1d material emerges only upon suppression of an ambient pressure spin-density wave ground state. As for more recently found superconductors proximate to a magnetic phase, there are clear signatures for spin fluctuations in the normal state. Further, the normal state properties have been interpreted in the context of a quantum critical point associated with the magnetic order, though there are important deviations from the standard scenario. Finally, the preponderance of evidence points to an order parameter consistent with pairing mediated by spin fluctuations.

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