학술논문

Tc and deltao in a phenomenological ''pseudogap'' model
Document Type
article
Source
Brazilian Journal of Physics. December 2003 33(4)
Subject
Language
English
ISSN
0103-9733
Abstract
We study numerically superconductivity in a system characterized by the presence of a phenomenological ”pseudogap”, Eg, in the energy spectrum, for 0 < T < Ts.T* is a crossover temperature. As a simplification, the pseudogap and the superconducting gap have the same s-wave symmetry. We find that for"Eg ¹ 0 we require a critical value of the superconducting interaction, Vd, to produce a finite superconducting critical temperature, Tc and another one for deltao ¹ 0.