Magnetic state and electronic structure of plutonium from ``first principles'' calculations

Details Magnetic state and electronic structure of plutonium from ``first principles'' calculations Magnetic state and electronic structure of plutonium from ``first principles'' calculations

2006-10-30

arxiv.org/abs/cond-mat/0610829v1

Physics

Condensed Matter

Strongly Correlated Electrons

19 pages, 18 figures, to be published in The Journal of Alloys and Compounds

Scientific paper

The goal to describe plutonium phases from ``first principles'' calculation methods is complicated by the problem of 5f-electrons localization. While for early actinides (Th, U,Np) standard DFT (Density Functional Theory) description with itinerant 5f-electrons works well for late actinides (Am, Cm) DFT calculations with completely localized (pseudocore) 5f-electrons give satisfactory results. However plutonium presents a border case of partial localization and both limits (itinerant and completely localized) are not valid. We present a review of the methods used to solve this problem and discuss what could be the reasons for their successes and failures.

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