Bi-magnetic core-shell nanoparticles with enhanced properties

1 CIN2(ICN-CSIC) and Universitat Autonoma de Barcelona, Catalan Institute of Nanotechnology (ICN), Campus UAB, 08193 Bellaterra, Spain 2 Dept. of Materials and Environmental Chemistry, Stockholm Univ., Stockholm, Sweden. 3 LENSMIND-IN2UB, Dept. d'Electronica, and TEM-MAT, SCT, Universitat de Barcelona, Barcelona, Spain 4 Departament de Fisica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain 5 Servei de Microscopia, Facultat de Ciencies, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain