Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
Based on the fact that high-Tc superconductors exhibit strong fluctuations, we have allowed the presence of pair fluctuations in the framework of the T-matrix formalism using the 2-D negative Hubbard model for temperatures above and below Tc. Our equations are fully self-consistent. For T ≥ Tc the electronic properties change drastically with respect to BCS treatment, namely, there is a pseudogap around the chemical potential in the density of states, and the spectral function, A(k,ω), vs. ω exhibits a double peak structure which is related to the appearance of this pseudogap. For T ≤ Tc, we have generalized the formalism in order to include the order parameter. © 1995 Plenum Publishing Corporation.
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
William Hinsberg, Joy Cheng, et al.
SPIE Advanced Lithography 2010
Mark W. Dowley
Solid State Communications
E. Burstein
Ferroelectrics