Electronic properties of embedded MnAs nano-clusters in a GaAs matrix and (Ga,Mn)As films: Evidence of distinct metallic character. - Rache Salles, B.; Girard, J. C.; David, C.; Offi, F.; Borgatti, F.; Eddrief, M.; Etgens, V. H.; Simonelli, L.; Marangolo, M.; Panaccione, G. (Applied Physics Letters, 2012)