Article ID Journal Published Year Pages File Type
1684997 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2007 7 Pages PDF
Abstract

In this work we have studied systematically the changes in the magnetic behavior of highly oriented pyrolytic graphite (HOPG) samples after proton irradiation in the MeV energy range. Superconducting quantum interferometer device (SQUID) results obtained from samples with thousands of localized spots of micrometer size as well on samples irradiated with a broad beam confirm previously reported results. Both, the para- and ferromagnetic contributions depend strongly on the irradiation details. The results indicate that the magnetic moment at saturation of spots of micrometer size is of the order of 10−10 emu.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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