抽象的な
Superconductivity in high- TC cuprates using infinite U extended Hubbard model
Kuldeep Kholiya
In the present investigation the expressions of the superconducting order parameter and carrierdensityusingextendedHubbardmodelunderU  limitwithin the framework ofHubbard projection operator andortho-fermions formalismhavebeenderived. The present studyshows that the next-nearest-neighbor hoppingandinter-site interaction playanimportant role thesemateriinthesuperconductingstateofhigh- Tc cuprates inwhich, there exists strong electronic correlations and virtually Ulimit is justified
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