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Electronic Structure of Ladder Cuprates

T. F. A. Muller·V. Anisimov·T. M. Rice·I. Dasgupta·T. Saha-Dasgupta
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Abstract

We study the electronic structure of the ladder compounds (SrCa)CuO 14-24-41 and SrCuO 123. LDA calculations for both give similar Cu 3d-bands near the Fermi energy. The hopping parameters estimated by fitting LDA energy bands show a strong anisotropy between the t_perp t_par intra-ladder hopping and small inter-ladder hopping. A downfolding method shows that this anisotropy arises from the ladder structure.The conductivity perpendicular to the ladders is computed assuming incoherent tunneling giving a value close to experiment.

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T. F. A. Muller, V. Anisimov, T. M. Rice, I. Dasgupta, T. Saha-Dasgupta. 1998-01-27. Electronic Structure of Ladder Cuprates. https://doi.org/10.1103/physrevb.57.r12655

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