TY  - JOUR
ID  - SisLab1807
UR  - doi:10.1016/j.matlet.2015.05.010
A1  - Dang, Duc Dung
A1  - Duong, Van Thiet
A1  - Dorj, Odkhuuc
A1  - Le, Viet Cuong
A1  - Nguyen, Hoang Tuan
A1  - Sunglae, Cho
Y1  - 2015/10//
N2  - We reported the room-temperature ferromagnetism in iron doped Bi0.5K0.5TiO3 nanocrystals. The reduction of band gap from 3.31 eV to 2.27 eV was obtained after introduction of iron to Bi0.5K0.5TiO3 with concentration up to 7 mol%. The first-principles density function theory (DFT) calculations indicate that the reduction of band gap is due to the presence of conduction bands of iron, and the ferromagnetism in iron-doped Bi0.5K0.5TiO3 samples was explained by the exchange splitting between spin subbands through crystal field theory. This method may provide an available way to get single-phase multiferroics and resolve the problem of the scarcity of single-phase multiferroics in nature.
JF  - Materials Letters
VL  - 156
TI  - Room-temperature ferromagnetism in Fe-doped wide band gap ferroelectric Bi0.5K0.5TiO3 nanocrystals
SP  - 129
AV  - none
EP  - 133
ER  -