Abstract
The present paper deals with the effect of Mn doping on structural and magnetic properties of Y2Zr1-xTi1-xMn2xO7 (x = 0.0, 0.05, 0.10) compounds. All the samples are single phase and crystallize in the cubic system with Fd-3m space group. Both lattice parameter a and cell volume V decrease with Mn substitution because of the smaller ionic radius of Mn4+ than Zr4+ and Ti4+. No significant differences between zero field-cooled (ZFC) and field-cooled (FC) curves are evident, demonstrating that the samples exhibit no magnetic ordering or spin glass-like transition. Both the Mn-doped phases exhibit antiferromagnetic behavior, which may possibly be due to the presence of super-exchange (SE) Mn4+–O2−–Mn4+ interactions. Small magnetic hysteresis loops are observed for the Mn-doped phases suggesting the presence of weak ferromagnetic interactions.
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