Abstract
Multiferroic 0.68Pb(Mg1/3Nb2/3)O3–0.32PbTiO3/CoFe2O4 (PMN–PT/CFO) composite films have been grown on Pt/Ti/SiO2/Si substrate via sol–gel spin-coating technique. PMN–PT and CFO precursor solutions were mixed before the spin-coating process to optimize the interface interaction. We investigated the influence of the composition ratio and annealing process on the property of the multiferroic PMN–PT/CFO composite films. The films which entirely consist of PMN–PT and CFO phases have a good performance in the ferroelectric, ferromagnetic property and direct magnetoelectric coupling effect when they were annealed at 730 °C and air atmosphere. It was obviously noticed that the composition ratio between PMN–PT and CFO has an effect on the properties of PMN–PT/CFO multiferroic composites.
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