Abstract
A typical reentrant spin-glass (RSG) behavior was observed and discussed for the phase-separated (Sm,Nd)0.5Ca0.5MnO3 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)0.5Ca0.5MnO3 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.
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