Structural and magnetic properties of tetragonal perovskite BaFe1−xBixO3−δ†
Abstract
A series of BaFe1−xBixO3−δ (0.09 ≤ x ≤ 0.35) has been synthesized by a traditional solid state method. They all crystallize in space group P4/mmm (with a = 4.0759(1) Å, c = 4.0782(1) Å for x = 0.15) confirmed by the combinational use of powder X-ray, synchrotron, neutron, and electron diffractions. The magnetic susceptibility measurements show that the antiferromagnetic transition for these materials occurs from 64 to 50 K.