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|Title:||Nonlocal correlations in the vicinity of the α-γ Phase transition in iron within a DMFT plus spin-fermion model approach|
|Authors:||Katanin, A. A.|
Belozerov, A. S.
Anisimov, V. I.
|Publisher:||American Physical Society|
|Citation:||Katanin A. A. Nonlocal correlations in the vicinity of the α-γ Phase transition in iron within a DMFT plus spin-fermion model approach / A. A. Katanin, A. S. Belozerov, V. I. Anisimov. — DOI 10.1103/PhysRevB.94.161117 // Physical Review B. — 2016. — Vol. 94. — Iss. 16. — 161117.|
|Abstract:||We consider nonlocal correlations in iron in the vicinity of the α-γ phase transition within the spin rotationally invariant dynamical mean-field theory (DMFT) approach, combined with the recently proposed spin-fermion model of iron. The obtained nonlocal corrections to DMFT yield a decrease of the Curie temperature of the α phase, leading to an agreement with its experimental value. We show that the corresponding nonlocal corrections to the energy of the α phase are crucially important to obtain the proximity of energies of α and γ phases in the vicinity of the iron α-γ transformation. © 2016 American Physical Society.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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