Induced Magnetic Ordering by Proton Irradiation in Graphite
arXiv:cond-mat/0309128 · doi:10.1103/PhysRevLett.91.227201
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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