Eur. Phys. J. D 23, 343-349 (2003)
https://doi.org/10.1140/epjd/e2003-00060-6

Magnetism in Rh clusters under hydrostatic deformations

¹ Instituto de Física, Universidad Autónoma de San Luis Potosí, 78000 San Luis Potosí, S.L.P., Mexico
² Instituto Potosino de Investigación Científica y Tecnológica, Apartado Postal 3-74 Tangamanga, 78231 San Luis Potosí, S.L.P., Mexico
³ Departamento de Física Teórica, Atómica, Molecular y Nuclear, Universidad de Valladolid, 47011 Valladolid, Spain

Corresponding author: ^a berlanga@dec1.ifisica.uaslp.mx

Received: 5 August 2002
Revised: 10 January 2003
Published online: 4 March 2003

Abstract

The magnetic behavior of rhodium clusters Rh_N (N=4–38) under hydrostatic deformations was investigated. The starting cluster structures were obtained from an evolutionary search algorithm applied to a Gupta potential. The spin-polarized electronic structure and related magnetic properties were calculated using a self-consistent spd tight-binding Hamiltonian within the unrestricted Hartree-Fock approximation. The magnetic behavior was analyzed in terms of the interdependence between the geometrical parameters and the electronic structure. Anomalous magnetic effects were found in some cases.