2024-03-28T19:40:39Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2117712022-12-20T10:35:47Zcom_10261_78com_10261_3com_10261_89col_10261_331col_10261_342
http://hdl.handle.net/10261/211771
10.1016/j.ceramint.2018.11.225
392477
Combination of structural and microstructural effects in the multiferroic response of Nd and Ti co-doped BiFeO3 bulk ceramics
Pergamon Press
2019
artículo
Gumiel, Carlos
Jardiel, Teresa
rp13698
Bernardo, M. S.
Villanueva, Pablo G.
Urdiroz, Unai
Cebollada, F.
Aragó, C.
Caballero Cuesta, Amador
Peiteado, Marco
rp14629
BiFeO3
rare-earth doping
R3c to Pbam transition
Rhombohedral distortion
Piezoelectric properties
Magnetic properties
2019
Different dopant strategies are currently under investigation in order to overcome the many problems that limit the commercial viability of BiFeO-based ceramic devices. Neodymium substitution onto the A site of the perovskite lattice provokes significant changes in the crystal structure of the parent material which can derive in enhanced multiferroic properties, but the conductivity in the bulk system is still too high. Titanium doping on the other hand generates a distinctive micro-nanostructure in the consolidated ceramics which can largely increase the dc resistivity of the whole material. A combination of these two effects is here attempted in a co-doping approach which evidences that the microstructural effect caused upon Ti-doping, provoking a reduction of the leakage currents, eventually allows the co-doped material to capitalize on the unique piezoelectric and magnetic properties structurally triggered by the Nd-doping.
Ministerio de Economía y Competitividad (España)
Ceramics International
2019
45
5276
5283