The superconductor UCoGe is analyzed with electronic structure calculations using Linearized Augmented Plane Wave method based on Density Functional Theory. Ferromagnetic and antiferromagnetic calculations with and without correlations (via LDA+U) were done. In this compound the Fermi level is situated in a region where the main contribution to DOS comes from the U-5f orbital. The magnetic moment is mainly due to the Co-3d orbital with a small contribution from the U-5f orbital. The possibility of fully non-collinear magnetism in this compound seems to be ruled out. These results are compared with the isostructural compound URhGe, in this case the magnetism comes mostly from the U-5f orbital.
@article{arxiv.0709.2351,
title = {Electronic structure of the ferromagnetic superconductor UCoGe from first principles},
author = {Pablo de la Mora and O. Navarro},
journal= {arXiv preprint arXiv:0709.2351},
year = {2009}
}