Electronic and Magnetic Properties of DyFe4Ge2 Alloys near a Phase Transition

The first-principles studies have been performed for the electronic and magnetic properties of DyFe 4 Ge 2 alloys near the P 4 2 / mmm – Cmmm phase transition. The calculations are carried out in a local spin density approximation taking into account the Coulomb interaction within the limit of stron...

Full description

Saved in:
Bibliographic Details
Published in:Physics of the solid state 2020-06, Vol.62 (6), p.931-936
Main Authors: Matyunina, M. V., Zagrebin, M. A., Sokolovskiy, V. V., Buchelnikov, V. D.
Format: Article
Language:English
Subjects:
Approximation
Exchanging
Ferrimagnetism
Ferromagnetism
First principles
Localization
Magnetic properties
Magnetism
Mathematical analysis
Metals
Phase transitions
Physics
Physics and Astronomy
Solid State Physics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The first-principles studies have been performed for the electronic and magnetic properties of DyFe 4 Ge 2 alloys near the P 4 2 / mmm – Cmmm phase transition. The calculations are carried out in a local spin density approximation taking into account the Coulomb interaction within the limit of strong localization in a mean field approximation. The electronic and magnetic properties of the tetragonal structure are shown to be weakly changed in the dependence on the Coulomb and exchange interactions and also on the choice of the approximations. In the case of the orthorhombic structure, a change in the parameters of the Coulomb and exchange interactions leads to a change in the magnetic ordering: from the ferromagnetic to ferrimagnetic in the strong localization limit and from the ferromagnetic to paramagnetic in the mean field approximation.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783420060165