Van Hove singularity and superconductivity in disordered Sr2RuO4

Authors
Litak, G Annett, JF Gyorffy, BL
Citation
G. Litak et al., Van Hove singularity and superconductivity in disordered Sr2RuO4, ACT PHY P A, 97(1), 2000, pp. 249-252
Citations number
7
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA A
ISSN journal
05874246 → ACNP
Volume
97
Issue
1
Year of publication
2000
Pages
249 - 252
Database
ISI
SICI code
0587-4246(200001)97:1<249:VHSASI>2.0.ZU;2-0
Abstract
On the basis of a simple model we analyse the influence of disorder on crit ical temperature T-c in p-wave superconductors. The disorder is treated by means of the coherent potential approximation and we focus our attention on the effect of a van Hove singularity near Fermi energy E-F. For the approp riate values of its parameters our model reproduces the experimentally foun d behaviour of Sr2RuO4.