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Superconductivity and Jahn–Teller effect in bilayer cuprate superconductors

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  • Brundabana Pradhan

    (BJB College)

Abstract

We have proposed a model Hamiltonian describing the interlayer tunnelling in d-wave bilayer cuprate superconductors in the coexistence of superconductivity and Jahn–Teller effect with the on-site non-magnetic impurity. The Hamiltonian is solved for the quasi-particle energy bands, the superconducting and the Jahn–Teller gap parameters by using Zubarev’s technique of double time electron Green’s functions. The effects of interlayer tunnelling and the strength of non-magnetic potential are studied for superconducting and Jahn–Teller gap parameters. The density of states for both the layers of the bi-layer system is studied and the results are compared with others. Graphical abstract

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  • Brundabana Pradhan, 2019. "Superconductivity and Jahn–Teller effect in bilayer cuprate superconductors," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 92(4), pages 1-8, April.
    • Handle: RePEc:spr:eurphb:v:92:y:2019:i:4:d:10.1140_epjb_e2019-90594-y
    DOI: 10.1140/epjb/e2019-90594-y
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    Solid State and Materials;

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