Superconductivity in the doped “pseudo-ladder” compound CaCu $_\mathsf{2}$ O $_\mathsf{3}$

N. Plakida (), A. Vladimirov and S.-L. Drechsler

The European Physical Journal B: Condensed Matter and Complex Systems, 2003, vol. 35, issue 4, 475-480

Abstract: An effective anisotropic t-J model for the “pseudo-ladder” compound CaCu 2 O 3 is proposed based on recent experimental studies and band structure calculations. Superconducting pairing mediated by the exchange interaction in the model is investigated as a function of doping away from the antiferromagnetic insulating state. It is shown that strong anisotropy in the electronic spectrum suppresses superconducting temperature in comparison with conventional copper-oxide superconductors with square lattices. Copyright Springer-Verlag Berlin/Heidelberg 2003

Date: 2003
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DOI: 10.1140/epjb/e2003-00300-7

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