A comparison of the magnetic properties of proton- and iron-implanted graphiteJ. Barzola-Quiquia, R. Höhne, M. Rothermel, A. Setzer, P. Esquinazi and V. HeeraEur. Phys. J. B, 61 2 (2008) 127-130DOI: https://doi.org/10.1140/epjb/e2008-00047-7