O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
The partition function of the Hubbard model with local attraction and long-range Coulomb repulsion between electrons is written as a functional integral with an action A involving a pairing field Δ and a local potential V. After integration over V and over fluctuations in \Δ\2, the final form of A involves a Josephson coupling between the local phases of Δ and a "kinetic energy" term, representing the screened Coulomb interaction between charge fluctuations. The competition between Josephson coupling and charging energy allows to understand the relation between TC and composition in high-TC materials, in particular superlattices, alloys and bulk systems of low doping.
O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
Kafai Lai, Alan E. Rosenbluth, et al.
SPIE Advanced Lithography 2007
Andreas C. Cangellaris, Karen M. Coperich, et al.
EMC 2001
U. Wieser, U. Kunze, et al.
Physica E: Low-Dimensional Systems and Nanostructures