TY - JOUR
T1 - Multiferroic properties of a BiCrO3/BiFeO3 double-layered thin film prepared by chemical solution deposition
AU - Kim, J. W.
AU - Raghavan, C. M.
AU - Kim, J. W.
AU - Kim, S. S.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - This study involved an investigation of the structural, electrical, and multiferroic properties of a BiCrO3/BiFeO3 (BCO/BFO) double-layered thin film that was prepared on a Pt(1 1 1)/Ti/SiO2/Si(1 0 0) substrate by using a chemical solution deposition method. X-ray diffraction and Raman spectroscopy studies revealed the formation of tetragonal and rhombohedral structures for the BCO/BFO double-layered thin film without any detectable secondary phases. A saturated ferroelectric hysteresis loop with a remnant polarization (2Pr) of 37 μC/cm2 and a coercive field (2Ec) of 1004 kV/cm at an applied electric field of 1154 kV/cm and a ferromagnetic hysteresis loop with a 2Mr value of 0.044 emu/cm2 and a 2Hc value of 276 Oe at a magnetic field of 10 kOe were observed for the BCO/BFO double-layered thin film at room temperature. The leakage current density of the BCO/BFO double-layered thin film was 2.88×10-4 A/cm2 at an external electric field of 100 kV/cm. The enhanced multiferroic properties observed for the BiCrO3/BiFeO3 thin film correlated with its net effects, such as a decrease in the oxygen vacancy density, a stabilization of the perovskite structure, and small changes in the lattice parameter caused by compressive strain resulting from the coupling of the BiFeO3 and BiCrO3 layers.
AB - This study involved an investigation of the structural, electrical, and multiferroic properties of a BiCrO3/BiFeO3 (BCO/BFO) double-layered thin film that was prepared on a Pt(1 1 1)/Ti/SiO2/Si(1 0 0) substrate by using a chemical solution deposition method. X-ray diffraction and Raman spectroscopy studies revealed the formation of tetragonal and rhombohedral structures for the BCO/BFO double-layered thin film without any detectable secondary phases. A saturated ferroelectric hysteresis loop with a remnant polarization (2Pr) of 37 μC/cm2 and a coercive field (2Ec) of 1004 kV/cm at an applied electric field of 1154 kV/cm and a ferromagnetic hysteresis loop with a 2Mr value of 0.044 emu/cm2 and a 2Hc value of 276 Oe at a magnetic field of 10 kOe were observed for the BCO/BFO double-layered thin film at room temperature. The leakage current density of the BCO/BFO double-layered thin film was 2.88×10-4 A/cm2 at an external electric field of 100 kV/cm. The enhanced multiferroic properties observed for the BiCrO3/BiFeO3 thin film correlated with its net effects, such as a decrease in the oxygen vacancy density, a stabilization of the perovskite structure, and small changes in the lattice parameter caused by compressive strain resulting from the coupling of the BiFeO3 and BiCrO3 layers.
KW - A. Films
KW - B.
KW - Electrical properties C.
KW - Ferroelectric properties C.
KW - Magnetic properties
KW - X-ray methods C.
UR - http://www.scopus.com/inward/record.url?scp=84925114569&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0272884215002758?via%3Dihub
U2 - 10.1016/j.ceramint.2015.02.056
DO - 10.1016/j.ceramint.2015.02.056
M3 - Article
AN - SCOPUS:84925114569
SN - 0272-8842
VL - 41
SP - 7211
EP - 7215
JO - Ceramics International
JF - Ceramics International
IS - 5, Part B
ER -