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19 April 2024

» arxiv » 1212.3288

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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 ;
Date:	13 Dec 2012
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 $1.6 imes10^{12}$ to $1.6 imes10^{15}$ 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.
Source:	arXiv, 1212.3288
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