Abstract
In the present study, the ferrimagnetic transition of doped cobaltite Nd1-xSrxCoO3 (0.1≤x≤0.5) was investigated in detail. The samples were successfully synthesized through solid state reaction method while the mixtures were ground and sintered. X-ray diffraction power patterns showed that all the samples were crystallized in the single perovskite structure with orthorhombic. Dc magnetization and ac susceptibility of samples were performed from 300 K to 5 K in the magnetic field. The results of dc magnetization measures suggest that Nd1- xSrxCoO3 is ferrimagnetic phase below 60 K. The lower doping samples are well shown by a fit to the critical slowing down of the spin class. Moreover, the study shows that magnetic interaction appears between Co spins and Nd spins. Therefore, the investigation suggests that the Nd and Co anti-parallel, Nd1-xSrxCoO3 ferrimagnetic transition exists at low temperature. Furthermore, in the paper we summarized the phase diagram obtains from the magnetic studies which presented the system is divided into ferromagnetic and spin- glass-like regions.
