TY - JOUR
T1 - Structural transformation and multiferroic properties of single-phase Bi 0.89 Tb 0.11 Fe 1-x Mn x O 3 thin films
AU - Dong, Guohua
AU - Tan, Guoqiang
AU - Luo, Yangyang
AU - Liu, Wenlong
AU - Ren, Huijun
AU - Xia, Ao
PY - 2014/1/30
Y1 - 2014/1/30
N2 - Pure BiFeO 3 (BFO) and Tb, Mn co-doped BiFeO 3 (BTFMO) thin films were deposited on SnO 2 : F (FTO)/glass substrates using a chemical solution deposition method. Detailed investigations were made on the influence of (Tb, Mn) co-doping on the structure change and the electric properties of the BFO films. With the co-doping of Tb and Mn, the structural transformation from rhombohedral R3c to triclinic P1 is confirmed through XRD, Rietveld refinement and Raman analysis. XPS analysis clarifies that (Tb, Mn) co-doping avails to decrease oxygen vacancy concentration, showing less Fe 2+ ions in the co-doped BTFMO thin films than that of the pure BFO thin film. Among the co-doped thin films, the BTFM 1 O film shows the highly enhanced ferroelectric properties with a giant remnant polarization value (2P r = 180.3 μC/cm 2 ). The structural transformation, the well-distributed fine grains and the reduction of leakage current favor enhanced ferroelectric property of (Tb, Mn) co-doped BFO films. It is also found that the BTFM 1 O film shows the enhanced ferromagnetism with the saturated magnetization (M s = 2.5 emu/cm 3 ) as a result of the collapse of space modulated spin structure by the structure transformation.
AB - Pure BiFeO 3 (BFO) and Tb, Mn co-doped BiFeO 3 (BTFMO) thin films were deposited on SnO 2 : F (FTO)/glass substrates using a chemical solution deposition method. Detailed investigations were made on the influence of (Tb, Mn) co-doping on the structure change and the electric properties of the BFO films. With the co-doping of Tb and Mn, the structural transformation from rhombohedral R3c to triclinic P1 is confirmed through XRD, Rietveld refinement and Raman analysis. XPS analysis clarifies that (Tb, Mn) co-doping avails to decrease oxygen vacancy concentration, showing less Fe 2+ ions in the co-doped BTFMO thin films than that of the pure BFO thin film. Among the co-doped thin films, the BTFM 1 O film shows the highly enhanced ferroelectric properties with a giant remnant polarization value (2P r = 180.3 μC/cm 2 ). The structural transformation, the well-distributed fine grains and the reduction of leakage current favor enhanced ferroelectric property of (Tb, Mn) co-doped BFO films. It is also found that the BTFM 1 O film shows the enhanced ferromagnetism with the saturated magnetization (M s = 2.5 emu/cm 3 ) as a result of the collapse of space modulated spin structure by the structure transformation.
KW - Co-doped
KW - Multiferroic
KW - Structural transformation
UR - https://www.scopus.com/pages/publications/84891025304
U2 - 10.1016/j.apsusc.2013.11.068
DO - 10.1016/j.apsusc.2013.11.068
M3 - 文章
AN - SCOPUS:84891025304
SN - 0169-4332
VL - 290
SP - 280
EP - 286
JO - Applied Surface Science
JF - Applied Surface Science
ER -