Band-edge BCS–BEC crossover in a two-band superconductor: physical properties and detection parameters

@inproceedings{Guidini2014BandedgeBC,
  title={Band-edge BCS–BEC crossover in a two-band superconductor: physical properties and detection parameters},
  author={Andrea Guidini and Andrea Perali},
  year={2014}
}
Superconductivity in iron-based magnesium diborides and other novel superconducting materials has a strong multi-band and multi-gap character. Recent experiments support the possibillity for a BCS–BEC crossover induced by strong-coupling and proximity of the chemical potential to the edge of one of the bands. Here we study the simplest theoretical model which accounts for the BCS–BEC crossover in a two-band superconductor, considering tunable interactions and tunable energy separations between… CONTINUE READING

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