Volume 66, Number 3, May 2004
|Page(s)||430 - 434|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 April 2004|
On the mechanism of irradiation-enhanced exchange bias
Fachbereich Physik and Forschungsschwerpunkt MINAS Technische Universität Kaiserslautern - Erwin-Schrödinger-Straße 56 67663 Kaiserslautern, Germany
Accepted: 2 March 2004
By means of layer-resolved ion irradiation, the mechanisms involved in the irradiation-driven modifications of the exchange bias effect in bilayers have been investigated. It is shown that not only the locations of the defects but also the magnetic coupling between both layers during the irradiation process is of crucial importance. This requires an extension of current models accounting for defects in exchange bias systems.
PACS: 75.70.Cn – Magnetic properties of interfaces (multilayers, superlattices, heterostructures) / 61.80.Jh – Ion radiation effects / 75.30.Gw – Magnetic anisotropy
© EDP Sciences, 2004
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