Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LDA++ approach to electronic structure of magnets: correlation effects
  in iron   A novel approach to investigation of correlation effects in the electronic
structure of magnetic crystals which takes into account a frequency dependence
of the self energy (so called ``LDA++ approach'') is developed. The fluctuation
exchange approximation is generalized to the spin-polarized multi-band case and
its local version is proposed. As an example, we calculate the electronic
quasiparticle spectrum of ferromagnetic iron. It is shown that the Fermi liquid
description of the bands near the Fermi level is reasonable, while the
quasiparticle states beyond approximately 1 eV range are strongly damped, in
agreement with photoemission data. The result of the spin-polarized
thermoemission experiment is explained satisfactory. The problem of satellite
structure is discussed.

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The categories of this paper are: math
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg