Modification of Magnetic Properties of Pt/Co/Pt Films by Ga + Ion Irradiation: Focused versus Uniform Irradiation - Archive ouverte HAL
Article Dans Une Revue Acta Physica Polonica A Année : 2018

Modification of Magnetic Properties of Pt/Co/Pt Films by Ga + Ion Irradiation: Focused versus Uniform Irradiation

Résumé

30 keV Ga + irradiation-induced changes of magnetic and magneto-optical properties of sputtered Pt/Co/Pt ultrathin trilayers films have been studied as a function of the ion fluence. Out-of-plane magnetic anisotropy states with enhanced magneto-optical effects were evidenced for specific values of cobalt thickness and irradiation fluence. Results obtained after uniform or quasi-uniform focused ion beam irradiation on either out-of-plane or in-plane magnetized sputtered pristine trilayers are compared. Similar irradiation-induced magnetic changes are evidenced in quasi-uniformly focused ion beam or uniformly irradiated films, grown either by sputtering or molecular beam epitaxy. We discuss on plausible common mechanisms underlying the observed effects.
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hal-02331893 , version 1 (21-11-2019)

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I Sveklo, P. Mazalski, J Jaworowicz, J.-P Jamet, N. Vernier, et al.. Modification of Magnetic Properties of Pt/Co/Pt Films by Ga + Ion Irradiation: Focused versus Uniform Irradiation. Acta Physica Polonica A, 2018, ⟨10.12693/aphyspola.133.1215⟩. ⟨hal-02331893⟩
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