BCS-BEC model of high-Tc superconductivity in layered cuprates with unconventional pairing

Details BCS-BEC model of high-Tc superconductivity in layered cuprates with unconventional pairing BCS-BEC model of high-Tc superconductivity in layered cuprates with unconventional pairing

2010-01-06

arxiv.org/abs/1001.0957v1

Physics

Condensed Matter

Superconductivity

7 pages, 1 figure

Scientific paper

High-Tc superconductivity in layered cuprates is described in a BCS-BEC formalism with linearly-dispersive s- and d-wave Cooper pairs moving in quasi-2D finite-width layers about the CuO_2 planes. This yields a closed formula for Tc determined by the layer width, the Debye frequency, the pairing energy, and the in-plane penetration depth. The new formula reasonably reproduces empirical values of superconducting Tc's for seven different compounds among the LSCO, YBCO, BSCCO and TBCCO layered cuprates.

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