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Effects of order on the electronic structure of ferromagnetic transition metal alloys: application to FeCo and Ni_3Fe

Desjonquères, M. C. ; Lavagna, M.

Journal of physics. F, Metal physics, 1979-09, Vol.9 (9), p.1733-1743

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Título:
Effects of order on the electronic structure of ferromagnetic transition metal alloys: application to FeCo and Ni_3Fe
Autor: Desjonquères, M. C. ; Lavagna, M.
Assuntos: Condensed Matter ; Physics ; Strongly Correlated Electrons
É parte de: Journal of physics. F, Metal physics, 1979-09, Vol.9 (9), p.1733-1743
Descrição: The electronic structures of ordered and disordered transition metal alloys are described in a tight-binding scheme. Charge transfer and magnetism are treated within a self-consistent Hartree-Fock model. We show that the rigid band splitting fails to take account of the ferromagnetism of these compounds. The densities of states of $FeCo$ and $Ni_3Fe$ are found to be more sensitive to order than the ferromagnetic properties. Energetic calculations are performed giving an estimation of the ordering energy, and comparisons are made with experimental results.
Editor: Institute of Physics (IOP)
Idioma: Inglês

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