Electronic structure and magnetic anisotropy of CrO_2

Details Electronic structure and magnetic anisotropy of CrO_2 Electronic structure and magnetic anisotropy of CrO_2

2004-09-21

arxiv.org/abs/cond-mat/0409554v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 7 EPS figures, in RevTex format

Scientific paper

10.1103/PhysRevB.71.172403

The problem of importance of strong correlations for the electronic structure, transport and magnetic properties of half--metallic ferromagnetic CrO_2 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.

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