Electronic configuration and magnetic properties of La_0.7Ca_0.3Mn_1-xFe_xO₃ perovskite NPs: The effect of a lower Fe³⁺ concentration

H. A. Martinez-Rodriguez, Kalu Onyekachi, A. Concha-Balderrama, G. Herrera-Pérez, J. A. Matutes-Aquino, J. F. Jurado, M. H. Bocanegra-Bernal, V. H. Ramos-Sánchez, J. A. Duarte-Moller, A. Reyes-Rojas