Yanyan Zhu, Jinrong Cheng, Shengwen Yu, Wenbiao Wu, Z. Meng
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引用次数: 0
Abstract
Multiferroic BiFeO3-CoFe2O4 (BFO-CFO) double-layer thin film has been deposited on platinized silicon substrate by pulsed-laser deposition. The BFO and CFO thin layers are deposited at 450 and 600 degC respectively. The diffraction peaks from spinel CoFe2O4 phases can be observed from the x-ray diffraction patterns of the double-layer BFO-CFO films. Dielectric constant and loss of the BFO-CFO films are of around 60 and 0.06 respectively, changing little with increasing the frequency. The leakege current density is about 10-6 A/cm2 under the field of 100 kV/cm. BFO-CFO thin films exhibit good ferromagnetic properties with the saturation magnetization of 120 emu/cm3 .
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