Ab initio electronic structure calculation of correlated systems: EMTO-DMFT approach

Details Ab initio electronic structure calculation of correlated systems: EMTO-DMFT approach Ab initio electronic structure calculation of correlated systems: EMTO-DMFT approach

2003-09-12

arxiv.org/abs/cond-mat/0309304v1

Phys. Rev. B 67, 235106 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 9 figures in PRB

Scientific paper

10.1103/PhysRevB.67.235106

We propose a self-consistent method for electronic structure calculations of correlated systems, which combines the local spin-density approximation (LSDA) and the dynamical mean field theory (DMFT). The LSDA part is based on the exact muffin-tin orbital approach, meanwhile the DMFT uses a perturbation scheme that includes the T matrix with fluctuation exchange approximation. The current LSDA+DMFT implementation fulfills both self-energy and charge self-consistency requirements. We present results on the electronic structure calculations for bulk 3d transition metals (Cr, Fe, and Ni) and for Fe/Cr magnetic multilayers. The latter demonstrates the importance of the correlation effects for the properties of magnetic heterostructures.

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