Electronic structure and magnetic anisotropy of CrO2 -: art. no. 172403

The problem of importance of strong correlations for the electronic structure, transport, and magnetic properties of half-metallic ferromagnefic CrO2 is addressed by performing density functional electronic structure calculations in the local spin density approximation (LSDA) as well as using the LSDA+U method. It is shown that the corresponding low-temperature experimental data are best fitted without accounting for the Hubbard U corrections. We conclude that the ordered phase of Cro(2) is weakly correlated.