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From semiconductors to superconductors: a simple model for pseudogaps

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Abstract:

We consider a two-dimensional semiconductor with a local attraction among the carriers. We study the ground state of this system as a function of the semiconductor gap. We find a direct transition from a superconducting to an insulating phase for no doping at a critical value, the single particle excitations being always gapped. For finite doping we find a smooth crossover. We calculate the critical temperature due to both the particle excitations and the Berezinkii-Kosterlitz-Thouless transition.

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Authors and Affiliations

  1. Institut Laue-Langevin, BP 156, 38042, Grenoble Cedex 9, France

    P. Nozières & F. Pistolesi

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  1. P. Nozières
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  2. F. Pistolesi
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Received 8 December 1998

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Nozières, P., Pistolesi, F. From semiconductors to superconductors: a simple model for pseudogaps. Eur. Phys. J. B 10, 649–662 (1999). https://doi.org/10.1007/s100510050897

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  • DOI: https://doi.org/10.1007/s100510050897

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