The superconductive instability of an anisotropic fermionic system has been analyzed using a generalization of Shankar's Renormalization-Group (RG) approach at finite temperature [R. Shankar, Rev. Mod. Phys. 66, 129 (1994)]. The relationship between RG and mean-field approximation has been discussed, recovering very general results such as that no symmetry mixing is allowed for the order parameter, at the critical temperature. The model has been employed as a tool to evaluate qualitatively the universal relationship between T-c and the in-plane hole-content in BiSSCO.
Renormalization-group analysis of the superconductive instability in anisotropic systems
SIRINGO, Fabio;ANGILELLA, Giuseppe Gioacchino Neil;
1996-01-01
Abstract
The superconductive instability of an anisotropic fermionic system has been analyzed using a generalization of Shankar's Renormalization-Group (RG) approach at finite temperature [R. Shankar, Rev. Mod. Phys. 66, 129 (1994)]. The relationship between RG and mean-field approximation has been discussed, recovering very general results such as that no symmetry mixing is allowed for the order parameter, at the critical temperature. The model has been employed as a tool to evaluate qualitatively the universal relationship between T-c and the in-plane hole-content in BiSSCO.File in questo prodotto:
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