Abstract
In this research, we have successfully synthesized Lu1-xCaxMnO3 (x = 0.1, 0.3, and 0.5) single crystal samples with space group P63cm, and studied their magnetic properties with multiple methods. On the basis of AC susceptibility and magnetic relaxation rate, we can reveal the evolution of spin-glass (SG) behavior, which occurs in Ca doping with x = 0.1 and x = 0.3 and disappears at x = 0.5. Such SG behavior is induced by the competition between super-exchange and double-exchange interactions among Mn ions and the magnetic transition occurs at about 100 K. This study would be helpful to study the magnetism in RMnO3 compounds and the SG behavior in multi-valence doping.
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