%A Van Thiet Duong %A Duc Cuong Do %A Huu Bac Luong %A Viet Cuong Le %A Dang Khoa Ha %A Duc Dung Dang %T Room-temperature Ferromagnetism in Nickel-Doped Wide Band Gap Ferroelectric Bi0.5K0.5TiO3 Nanocrystals %C Hanoi, Vietnam %D 2014 %L SisLab1270