Structural and Moessbauer effect studies of 0.1Bi0.95Dy0.05FeO3-0.9Pb(Fe2/3W1/3)O3 multiferroic

Multiferroics which are simultaneously ferroelectric and magnetically ordered are of great importance both for fundamental solid state physics and for modern technology. The polycrystalline sample of 0.1Bi0.95Dy0.05FeO3 - 0.9Pb(Fe2/3W1/3)O3 were synthesized using standard sintering procedure. Crystal phase purity and crystal structure were determined using XRD method. The obtained crystal structure of the compound is a tetragonally distorted perovskite like structure (P4mm) with lattice parameters a = b = 3.987 A, c = 3.990 A. Moessbauer Effect (ME) studies were performed on 57Fe nuclei at 77K. The obtained spectra are composed of three Zeeman sextets. In the middle part of the obtained spectra there is observed paramagnetic dublet, which could be designated to impurity phase, which wasn't reveled on XRD pattern. The hyperfine interaction parameters for the all subspectra components confirm existence iron Fe3+ only in the investigated material.