Study of morphology, magnetic properties, and visible magnetic circular dichroism of Ni nanoparticles synthesized in SiO2 by ion implantation. - Edelman, I. S.; Petrov, D. A.; Ivantsov, R. D.; Zharkov, S. M.; Velikanov, D. A.; Gumarov, G. G.; Nuzhdin, V. I.; Valeev, V. F.; Stepanov, A. L. (Physical Review B: Condensed Matter & Materials Physics, 2013)