TY - JOUR
T1 - Effects of donor W 6+ -ion doping on the microstructural and multiferroic properties of Aurivillius Bi 7 Fe 3 Ti 3 O 21 thin film
AU - Raghavan, Chinnambedu Murugesan
AU - Kim, Jin Won
AU - Choi, Ji Ya
AU - Kim, Jong Woo
AU - Kim, Sang Su
PY - 2015/8/15
Y1 - 2015/8/15
N2 - Aurivillius phase Bi 7 Fe 3 (Ti 3 - x W x )O 21 + δ (x = 0 and 0.06) thin films were deposited on Pt(1 1 1)/Ti/SiO 2 /Si(1 0 0) substrates by using a chemical solution deposition method. The W 6+ -ion doped Bi 7 Fe 3 Ti 3 O 21 thin film exhibited tremendous improvements in the electrical and multiferroic properties, namely a low leakage current density, good stability against electrical breakdown, large ferroelectric polarization and large magnetization as compared to the un-doped thin film. The Bi 7 Fe 3 (Ti 2.94 W 0.06 )O 21 + δ thin film was stable against electrical break down at applied electric fields up to 1275 kV/cm, at which the measured remnant polarization (2P r ) and the coercive field (2E c ) values were 33.5 μC/cm 2 and 825 kV/cm, respectively whereas, the measured 2P r value of the un-doped Bi 7 Fe 3 Ti 3 O 21 thin film was 3.5 μC/cm 2 at an applied electric field of 318 kV/cm. Furthermore, the Bi 7 Fe 3 (Ti 2.94 W 0.06 )O 21 + δ thin film showed a well-saturated ferromagnetic hysteresis loop with large magnetization at room temperature.
AB - Aurivillius phase Bi 7 Fe 3 (Ti 3 - x W x )O 21 + δ (x = 0 and 0.06) thin films were deposited on Pt(1 1 1)/Ti/SiO 2 /Si(1 0 0) substrates by using a chemical solution deposition method. The W 6+ -ion doped Bi 7 Fe 3 Ti 3 O 21 thin film exhibited tremendous improvements in the electrical and multiferroic properties, namely a low leakage current density, good stability against electrical breakdown, large ferroelectric polarization and large magnetization as compared to the un-doped thin film. The Bi 7 Fe 3 (Ti 2.94 W 0.06 )O 21 + δ thin film was stable against electrical break down at applied electric fields up to 1275 kV/cm, at which the measured remnant polarization (2P r ) and the coercive field (2E c ) values were 33.5 μC/cm 2 and 825 kV/cm, respectively whereas, the measured 2P r value of the un-doped Bi 7 Fe 3 Ti 3 O 21 thin film was 3.5 μC/cm 2 at an applied electric field of 318 kV/cm. Furthermore, the Bi 7 Fe 3 (Ti 2.94 W 0.06 )O 21 + δ thin film showed a well-saturated ferromagnetic hysteresis loop with large magnetization at room temperature.
KW - Chemical solution deposition
KW - Electrical properties
KW - Ferroelectricity
KW - Magnetic properties
KW - Thin films
UR - http://www.scopus.com/inward/record.url?scp=84930031883&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0169433215008600?via%3Dihub
U2 - 10.1016/j.apsusc.2015.04.020
DO - 10.1016/j.apsusc.2015.04.020
M3 - Article
AN - SCOPUS:84930031883
SN - 0169-4332
VL - 346
SP - 201
EP - 206
JO - Applied Surface Science
JF - Applied Surface Science
ER -