Griffith-Like Phase in Co-Substituted La0.7Sr0.3MnO3

The appearance of the Griffith-like phase over a wide range of x in La0.7Sr0.3Mn1−xCoxO3 is assessed in this study. This phase occurs due to the quenched disorder arising from the random distribution of Co-O-Mn antiferromagnetic bonds in a ferromagnetic background. Based on the present study, a modified magnetic phase diagram for the La0.7Sr0.3Mn1−xCoxO3 system has been constructed.