Mn-site doped Y1−Ca MnO3 (x=0.3–0.4)—from spin glass to FM cluster formation

Abstract The spin glass/cluster glass properties of manganite perovskites Y 1− x + y Ca x − y Mn 1− y Cr y O 3 , x =0.3, y =0 and x =0.4, y =0, 0.05, 0.1 were studied by measuring and analyzing magnetization, AC susceptibility and heat capacity data. While the x =0.3, y =0 sample shows typical spin glass characteristics, the Cr-doped manganites ( x =0.4) can be rather viewed as non-uniform systems with ferromagnetic clusters.