Goncalves, L. F. [UNESP]Rocha, L. S.R. [UNESP]Hangai, B. [UNESP]Ortega, Pedro Paulo Silva [UNESP]Longo, E. [UNESP]Simões, Alexandre Z. [UNESP]2018-12-112018-12-112018-01-01Processing and Application of Ceramics, v. 12, n. 2, p. 153-164, 2018.2406-10341820-6131http://hdl.handle.net/11449/180027Pure and calcium-modified (CaxBi1-xFeO3, x = 0.0, 0.1, 0.2, 0.30) thin films were fabricated on Pt(111)/Ti/SiO2/Si substrates by the soft chemical method using LaNiO3 as the bottom electrode. Highly (200)-oriented BFO film was coherently grown on LNO at 500 °C. Ca-doped BiFeO3 films have a dense microstructure and rounded grains. The conventional problem of the leakage current for the highest doped film was reduced from 10-5 to 10-10 with remarkable improvement in the film/electrode interface, chemical homogeneity, crystallinity, and morphology of the BFO film. Enhanced ferroelectricity was observed at room temperature due to the bottom electrode. Fatigue-free films were grown on LaNiO3 bottom electrodes with no degradation after 1×1010 switching cycles at an applied voltage of 5 V with a frequency of 1 MHz. After several tests the capacitors retained 77% of its polarization upon a retention time of 104 s. Room temperature magnetic coercive field measurements indicate that the magnetic behaviour is influenced by the nature of the bottom electrode.153-164engBismuth ferriteLanthanum nickelateMultiferroicsThin filmsArtigoAcesso restrito2-s2.0-85049862624