Reentrant spin-glass behavior in phase-separated manganites

Abstract A typical reentrant spin-glass (RSG) behavior was observed and discussed for the phase-separated (Sm,Nd) 0.5 Ca 0.5 MnO 3 manganites. The characteristic time constants of the spin-glass state were calculated based on the critical slowing down model. It was found that the characteristic time constant of the phase-separated (Sm,Nd) 0.5 Ca 0.5 MnO 3 manganites are larger than those of the conventional SG state. Such results indicate that most probably there exist complicated magnetic interplays in the ground state of the compounds.