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

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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Submitted on : Thursday, December 13, 2012 - 5:07:34 PM
Last modification on : Saturday, January 15, 2022 - 3:44:42 AM
Long-term archiving on: : Thursday, March 14, 2013 - 3:53:23 AM


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Martino Trassinelli, V. Gafton, Mahmoud Eddrief, Victor H. Etgens, S. Hidki, et al.. Magnetic properties changes of MnAs thin films irradiated with highly charged ions. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2013, 317, pp.154-158. ⟨10.1016/j.nimb.2013.04.025⟩. ⟨hal-00764943⟩



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