title: Planar patterned magnetic media obtained by ion irradiation
abstract: By ion irradiation through a lithographically made resist mask, the magnetic properties of cobalt-platinum simple sandwiches and multilayers were patterned without affecting their roughness and optical properties. This was demonstrated on arrays of 1-micrometer lines by near- and far-field magnetooptical microscopy. The coercive force and magnetic anisotropy of the irradiated regions can be accurately controlled by the irradiation fluence. If combined with high-resolution lithography, this technique holds promise for ultrahigh-density magnetic recording applications.
authors.affiliation: C. Chappert, V. Kottler, T. Devolder, V. Mathet, Institut d'Electronique Fondamentale, Unite de Recherche Associee CNRS 022, Universite Paris Sud, 91405 Orsay Cedex, France. H. Bernas, Centre de Spectrometrie Nucleaire et de Spectromet.
authors.initials: C
authors.lastname: Chappert
authors.initials: H
authors.lastname: Bernas
authors.initials: J
authors.lastname: Ferre
authors.initials: V
authors.lastname: Kottler
authors.initials: J
authors.lastname: Jamet
authors.initials: Y
authors.lastname: Chen
authors.initials: E
authors.lastname: Cambril
authors.initials: T
authors.lastname: Devolder
authors.initials: F
authors.lastname: Rousseaux
authors.initials: V
authors.lastname: Mathet
authors.initials: H
authors.lastname: Launois