Induced Magnetic Ordering by Proton Irradiation in Graphite

2003/09/05 by P. Esquinazi, D. Spemann, R. Höhne +3
Physics and Astronomy · #cond-mat.str-el #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevlett.91.227201

published as Phys. Rev. Letters 91, 227201 (2003) · 3 Figures

arxiv created 2003/09/05 · arxiv updated 2009/12/01

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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