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Transition temperature and a spatial dependence of the superconducting gap for multilayer high-temperature superconductors

Krzysztof Byczuk·Jozef Spalek
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Abstract

We derive the expressions for the transition temperature $(T_{c})$, and the spatial dependence of the superconducting gap for a multilayer high-$T_{c}$ superconductor composed of groups of tightly spaced planes separated by a larger distance. The results are compared with experiment and provide a strong support for an interlayer hopping as the driving force of the large $T_{c}$ enhancement in multilayered compounds. Our results are universal in the sense that they are valid for an arbitrary pairing potential $V_{\bf k k'}$ in the $\rm CuO_{2}$ planes, as well as for both Fermi and nonFermi liquids.

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Krzysztof Byczuk, Jozef Spalek. 1995-09-15. Transition temperature and a spatial dependence of the superconducting gap for multilayer high-temperature superconductors. https://doi.org/10.1103/physrevb.53.r518

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