dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2018-12-11T17:37:43Z | |
dc.date.available | 2018-12-11T17:37:43Z | |
dc.date.created | 2018-12-11T17:37:43Z | |
dc.date.issued | 2018-01-01 | |
dc.identifier | Processing and Application of Ceramics, v. 12, n. 2, p. 153-164, 2018. | |
dc.identifier | 2406-1034 | |
dc.identifier | 1820-6131 | |
dc.identifier | http://hdl.handle.net/11449/180027 | |
dc.identifier | 2-s2.0-85049862624 | |
dc.description.abstract | Pure 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. | |
dc.language | eng | |
dc.relation | Processing and Application of Ceramics | |
dc.relation | 0,318 | |
dc.relation | 0,318 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Bismuth ferrite | |
dc.subject | Lanthanum nickelate | |
dc.subject | Multiferroics | |
dc.subject | Thin films | |
dc.title | Electrical properties of calcium doped BiFeO3 films on LaNiO3 coated Pt substrates | |
dc.type | Artículos de revistas | |