Ferrite
. "Electric field control of ferromagnetism using multi-ferroics: The bismuth ferrite story." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372 (2014).
. "Electric field control of magnetism using multiferroic bismuth ferrite." Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 61 (2014) S19-S24.