title: Geometry dependence of coercivity in Ni nanowire arrays.
abstract: Magnetic properties of arrays of nanowires produced inside the pores of anodic alumina membranes have been studied by means of vibrating sample magnetometer techniques. In these systems the length of the wires strongly influences the coercivity of the array. A simple model for the coercivity as a function of the geometry is presented which exhibits good agreement with experimental results. Magnetostatic interactions between the wires are responsible for a decrease of the coercive field.
authors.affiliation: Departamento de Física, Universidad de Santiago de Chile, USACH, Avenida Ecuador 3493, 917-0124 Santiago, Chile.
authors.forename: J
authors.initials: J
authors.lastname: Escrig
authors.forename: R
authors.initials: R
authors.lastname: Lavín
authors.forename: J L
authors.initials: JL
authors.lastname: Palma
authors.forename: J C
authors.initials: JC
authors.lastname: Denardin
authors.forename: D
authors.initials: D
authors.lastname: Altbir
authors.forename: A
authors.initials: A
authors.lastname: Cortés
authors.forename: H
authors.initials: H
authors.lastname: Gómez