Elementary Excitation and Local Polarization in Layered High-Tc Cuprates

Author: Kuwata Seiichi  

Publisher: Taylor & Francis Ltd

ISSN: 0015-0193

Source: Ferroelectrics, Vol.268, Iss.1, 2002-01, pp. : 393-398

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Abstract

We explain the superconducting isotope effect in layered cuprates based on a 2D electron-hole lattice model, where electrons and holes are localized to stabilize local polarization mainly caused by the ion displacement. Upon doping carriers, high-Tc superconductivity is assumed to be realized through the interaction with the elementary excitation of the 2D electronhole lattice oscillation.