title: Modification of the saturation magnetization of exchange bias thin film systems upon light-ion bombardment.
abstract: The magnetic modification of exchange bias materials by 'ion bombardment induced magnetic patterning' has been established more than a decade ago. To understand these experimental findings several theoretical models were introduced. Few investigations, however, did focus on magnetic property modifications caused by effects of ion bombardment in the ferromagnetic layer. In the present study, the structural changes occurring under ion bombardment were investigated by Monte-Carlo simulations and in experiments. A strong reduction of the saturation magnetization scaling linearly with increasing ion doses is observed and our findings suggest that it is correlated to the swelling of the layer material based on helium implantation and vacancy creation.
authors.affiliation: Center for Interdisciplinary Nanostructure Science and Technology (CINSaT) and Institute of Physics, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany.
authors.forename: Henning
authors.initials: H
authors.lastname: Huckfeldt
authors.forename: Alexander
authors.initials: A
authors.lastname: Gaul
authors.forename: Nicolas
authors.initials: N
authors.lastname: David Müglich
authors.forename: Dennis
authors.initials: D
authors.lastname: Holzinger
authors.forename: Dennis
authors.initials: D
authors.lastname: Nissen
authors.forename: Manfred
authors.initials: M
authors.lastname: Albrecht
authors.forename: Daniel
authors.initials: D
authors.lastname: Emmrich
authors.forename: André
authors.initials: A
authors.lastname: Beyer
authors.forename: Armin
authors.initials: A
authors.lastname: Gölzhäuser
authors.forename: Arno
authors.initials: A
authors.lastname: Ehresmann