Abstract
The present article reviews the structural and magnetic properties of Y2Zr2−xMnxO7 compounds with respect to the extent of Mn doping. All the samples are single phase and crystallize in the cubic system with Fd-3m space group. The stability of the pyrochlore structure was established by Rietveld structural refinements. The lattice parameter and cell volume decrease with Mn substitution because of the smaller ionic radius of Mn4+ than Zr4+. The zero field-cooled (ZFC) and field-cooled (FC) curves for Mn-doped samples diverge at low temperature which is possibly due to spin-glass transition. Both the Mn-doped phases exhibit anti-ferromagnetic behavior, which could be due to the presence of super-exchange (SE) Mn4+–O2−–Mn4+ interactions. Moreover, small magnetic hysteresis loops are observed for the Mn-doped phases suggesting the presence of weak ferromagnetic interactions.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
