화학공학소재연구정보센터
Materials Research Bulletin, Vol.48, No.11, 4628-4632, 2013
Room temperature multiferroic properties of (Bi0.95La0.05)(Fe0.97Mn0.03)O-3/NiFe2O4 double layered thin film
(Bi0.95La0.05)(Fe0.97Mn0.03)O-3/NiFe2O4 double layered thin film was prepared on a Pt(111)/Ti/SiO2/Si(100) substrate by a chemical solution deposition method. X-ray diffraction and Raman scattering spectroscopy studies confirmed the formation of the distorted rhombohedral perovskite and the inverse spinel cubic structures for the (Bi0.95La0.05)(Fe0.97Mn0.03)O-3/NiFe2O4 double layered thin film. The (Bi0.95La0.05)(Fe0.97Mn0.03)O-3/NiFe2O4 double layered thin film exhibited well saturated ferromagnetic (2 M-r of 18.1 emu/cm(3) and 2H(c) of 0.32 kOe at 20 kOe) and ferroelectric (2P(r) of 60 mu C/cm(2) and 2E(c) of 813 kV/cm at 866 kV/cm) hysteresis loops with low order of leakage current density (4.5 x 10(-6) A/cm(2) at an applied electric field of 100 kV/cm), which suggest the ferroelectric and ferromagnetic multi-layers applications in real devices. (C) 2013 Elsevier Ltd. All rights reserved.