  The Lead-iron-niobate, (PbFe0.5Nb0.5O3 or PFN) was synthesized by low
temperature sintering Single Step / Solid State Reaction Method. The 700 C / 2
hrs calcined powder was sintered at 1050 C / 1 hr. The sintered pellets were
characterized through X-Ray Diffraction and Neutron Diffraction at room
temperature. It is found from the XRD pattern that the materials is in single
phase with no traces of pyrochlore phase. It was also confirmed from the
neutron diffraction pattern, the structure of PFN to be monoclinic, belongs to
space group C m. Structural studies has been carried out by refining the
obtained neutron diffraction data by Reitveld refinement method using Full Prof
Program. The neutron diffraction pattern at 290K (near room temperature) was
selected to refine the structure. The Lattice parameters obtained are; a =
5.6709 A, b = 5.6732, c = 4.0136 and {\alpha} = 90, \b{eta} = 89.881, {\gamma}
= 90.000. The P-E measurements showed hysteretic behavior with high remnant
polarization.
