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arXiv · 1212.3288

Magnetic properties changes of MnAs thin films irradiated with highly charged ions

Martino Trassinelli·V. Gafton·M. Eddrief·V. H. Etgens·S. Hidki·Emmanuelle Lacaze·Emily Lamour·X. Luo·M. Marangolo·Jacques Merot·Christophe Prigent·Regina Reuschl·Jean-Pierre Rozet·S. Steydli·Dominique Vernhet
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Abstract

We present the first investigation on the effect of highly charged ion bombardment on a manganese arsenide thin film. The MnAs films, 150 nm thick, are irradiated with 90 keV Ne$^{9+}$ ions with a dose varying from $1.6\times10^{12}$ to $1.6\times10^{15}$ ions/cm$^2$. The structural and magnetic properties of the film after irradiation are investigated using different techniques, namely, X-ray diffraction, magneto-optic Kerr effect and magnetic force microscope. Preliminary results are presented. From the study of the lattice spacing, we measure a change on the film structure that depends on the received dose, similarly to previous studies with other materials. Investigations on the surface show a strong modification of its magnetic properties.

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Martino Trassinelli, V. Gafton, M. Eddrief, V. H. Etgens, S. Hidki, Emmanuelle Lacaze, Emily Lamour, X. Luo, M. Marangolo, Jacques Merot, Christophe Prigent, Regina Reuschl, Jean-Pierre Rozet, S. Steydli, Dominique Vernhet. 2012-12-13. Magnetic properties changes of MnAs thin films irradiated with highly charged ions. https://doi.org/10.1016/j.nimb.2013.04.025

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