Granular L10 FePt:X (X = Ag, B, C, SiOx, TaOx) thin films for heat assisted magnetic recording Steven D. Granz, Katayun Barmak and Mark H. Kryder Eur. Phys. J. B, 86 3 (2013) 81 Published online: 06 March 2013 DOI: 10.1140/epjb/e2012-30655-3