Eur. Phys. J. D 30, 335-341 (2004)
https://doi.org/10.1140/epjd/e2004-00093-3

Magnetic behavior of clusters Fe₁/V_N (N ≤ 144) embedded in a Fe matrix

¹ Departamento de Matemáticas Aplicadas, Facultad de Contaduría y Administración, Universidad Autónoma de San Luis Potosí, Alvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México
² Departamento de Física, Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, Alvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México

Corresponding author: ^a pal@galia.fc.uaslp.mx

Received: 19 January 2004
Revised: 22 April 2004
Published online: 10 August 2004

Abstract

The magnetic properties of clusters Fe₁/V_N () in bulk Fe are determined by using a realistic spd-band Hubbard-like model. The spin density distribution is calculated self-consistently in the unrestricted Hartree-Fock approximation. The local magnetic moments and the densities of electronic states are obtained at various atoms i of clusters and of the surrounding matrix. The Fe atoms couple antiferromagnetically with the V atoms. In most cases the Fe moments close to the V atoms are reduced, [ e.g., in Fe₁/V₅₀] . The magnetic order into the clusters is not well defined, in some cases the magnetic order in the V atoms is antiferromagnetic, in another cases the magnetic order is ferromagnetic and in other cases the both magnetic arrangements coexist.