An Evaluation of Pseudo Gap in High Tc-Superconductor using Pairing Scenario of Nozieres and Schmitt Rink Theory

Shreemant Ramana; L. K. Mishra

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International Journal of Chemical Sciences
ISSN: 0972-768X

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Review

, Volume: 9( 3)

An Evaluation of Pseudo Gap in High Tc-Superconductor using Pairing Scenario of Nozieres and Schmitt Rink Theory

Abstract

In this paper, we have studied the pseudo gap through pairing scenario based on Nozieres and Schmitt-Rink theory. The central theme of this theory is the Cross-over problem from BCS superconductivity to Bose-Einstein Condensation (BEC). Pseudo gap state is regarded as a cross-over region. There is a co-existence of Fermions and Bosons in this region. Evaluating the self-energy from Tmatrix approach, we have studied the pseudo gap in the single particle excitation.