The rare-earth manganites, RMnO₃, exhibit hexagonal and orthorhombic structure when ‘R’ the ionic radius is smaller (R = Ho, Er, Tm, Lu and Y) and for larger radius (R = La, Pr, Nd, Sm, Eu, Gd and Tb) respectively. YMnO₃ is one such compound that exhibits both ferroelectric and antiferromagnetic orders below 70 K. Ferroelectric ordering occurs only in the hexagonal phase, which belongs to the noncentrosymmetric P63cm space group, whereas an antiferromagnetic ordering occurs in both structural phases.

 YMnO₃ powders were conventionally synthesized by solid-state reaction process by the use of Y₂O₃ and Mn₂O₃ as starting materials. The solid-state reaction process usually requires a calcination temperature above 1200 ^oC. The high calcination temperature inevitably leads to coarsening microstructures and, thus, the sinterability of the synthesized powders. As a result, extremely high sintering temperature is needed to obtain single phase YMnO₃.

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