ABO3 perovskite multiferroic La0.5Bi0.5Mn0.5Fe0.5O3.09 where the B-site cations is responsible for the magnetic properties and the A-site cation with lone pair electron is responsible for the ferroelectric properties was synthesized at normal conditions. This oxide exhibits a ferromagnetic transition around 240 K with a well defined hysteresis loop, and a significant reversible remnant polarization below 67K similar to ferroelectric behavior. The magnetic interaction is interpreted by the ferromagnetic Fe3+-O-Mn3+ and antiferromagnetic Fe3+(Mn3+)-O-Fe3+(Mn3+) interactions competed each other, whereas the ferroelectricity is predominantly due to the polar nature introduced by the 6s2 lone pair of Bi3+ cations
@article{arxiv.0806.4274,
title = {A Multiferroic Ceramic with Perovskite Structure: La0.5Bi0.5Mn0.5Fe0.5O3.09},
author = {Asish K. Kundu and R. Ranjith and V. Pralong and N. Nguyen and B. Kundys and V. Caignaert and W. Prellier and B. Raveau},
journal= {arXiv preprint arXiv:0806.4274},
year = {2008}
}
Comments
Submitted to Applied Physics Letters, 7 pages, 3 figures