Electronic structure and magnetic anisotropy of CrO_2

Abstract

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.

5 pages, 7 EPS figures, in RevTex format

References in corpus (8)

• Linear-response theory and lattice dynamics: a muffin-tin orbital approach
• CrO2: a self-doped double exchange ferromagnet
• Band Structure and Transport Properties of CrO_2
• Prominent quasi-particle peak in the photoemission spectrum of the metallic phase of V_2O_3
• Importance of Correlation Effects on Magnetic Anisotropy in Fe and Ni
• Transport, optical and electronic properties of the half metal CrO2
• Orbital character of O 2p unoccupied states near the Fermi level in CrO2
• Orbital Correlations in the Ferromagnetic Half-Metal $CrO_{2}

Cited by in corpus (8)

• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Half-metallic ferromagnets: From band structure to many-body effects
• Half-Metallic Ferromagnetism and the spin polarization in CrO${}_2$
• Electronic structure and X-ray magnetic circular dichroism of CrO${}_2$
• Weakly-correlated nature of ferromagnetism in non symmorphic CrO${}_2$ revealed by bulk-sensitive soft X ray ARPES
• Intrinsic Correlated Electronic Structure of CrO2 Revealed by Hard X-ray Photoemission Spectroscopy
• Cancellation of probe effects in measurements of spin polarized momentum density by electron positron annihilation
• Biaxial-stress driven tetragonal symmetry breaking in and high-temperature ferromagnetic semiconductor from half-metallic CrO2