Fluctuation conductivity in layered d-wave superconductors near critical disorder
Abstract
We consider the fluctuation conductivity in the critical region of a disorder induced quantum phase transition in layered d-wave superconductors. We specifically address the fluctuation contribution to the system's conductivity in the limit of large (quasi-two-dimensional system) and small (quasi-three-dimensional system) separation between adjacent layers of the system. Both in-plane and c-axis conductivities were discussed near the point of insulator-superconductor phase transition. The value of the dynamical critical exponent, , permits a perturbative treatment of this quantum phase transition under the renormalization group approach. We discuss our results for the system conductivities in the critical region as function of temperature and disorder.
Keywords
Cite
@article{arxiv.cond-mat/0302547,
title = {Fluctuation conductivity in layered d-wave superconductors near critical disorder},
author = {I. Tifrea and D. Bodea and I. Grosu and M. Crisan},
journal= {arXiv preprint arXiv:cond-mat/0302547},
year = {2009}
}
Comments
Final version to be published in Eur. Phys. J. B