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Induced Magnetic Ordering by Proton Irradiation in Graphite

P. Esquinazi·D. Spemann·R. Höhne·A. Setzer·K. -H. Han·T. Butz
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Abstract

We provide evidence that proton irradiation of energy 2.25 MeV on highly-oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism. Measurements performed with a superconducting quantum interferometer device (SQUID) and magnetic force microscopy (MFM) reveal that the magnetic ordering is stable at room temperature.

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P. Esquinazi, D. Spemann, R. Höhne, A. Setzer, K. -H. Han, T. Butz. 2003-09-05. Induced Magnetic Ordering by Proton Irradiation in Graphite. https://doi.org/10.1103/physrevlett.91.227201

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