  We report on the single phase synthesis and room temperature structural
characterization of PbFe0.67W0.33O3 (PFW) multiferroic. The PFW was synthesized
by low temperature sintering, Columbite method. Analysis of powder XRD pattern
exhibits single phase formation of PFW with no traces of pyrochlore phase.
Detailed analysis of room temperature neutron diffraction (ND) reveals cubic
phase at room temperature, space group Pm-3m. The ND pattern clearly reveals
magnetic Bragg peak at 2theeta = 18.51 (Q = 1.36{\AA}-1). The refinement of
magnetic structure reveals G-type antiferromagnetic structure in PFW at room
temperature. The dielectric constant and loss tangent decreases with increasing
frequency. The room temperature P-E measurements shows a non-linear slim
hysteresis, typical nature of relaxor multiferroics, with saturation and
remnant polarizations of Ps = 1.50 microC/cm2 and Pr = 0.40 microC/cm2,
respectively.
