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Página principal > Artículos > Artículos publicados > Ferromagnetic-like behaviour in bismuth ferrite films prepared by electrodeposition and subsequent heat treatment |
Fecha: | 2017 |
Resumen: | Bismuth ferrite (BiFeO₃) films (10 μm in thickness) are synthesized by electrodeposition from a dimethylformamide bath containing Bi and Fe nitrate salts as precursors followed by heat treatment in air. Thermal treatments are needed to induce crystallisation of the as-deposited amorphous-like films. A detailed morphological, structural and magnetic characterisation evidences that BiFeO3 forms in a rather narrow temperature window (around 600 °C). At lower and higher temperatures, secondary binary and ternary oxides are also formed. Soft ferromagnetic-like behaviour is observed in all films, which presumably arises from the obtained nanoscale structure, which favours the occurrence of spin canting in the BiFeO₃ antiferromagnetic phase. The eventual contribution from secondary phases to the observed ferromagnetic-like response is also discussed. The obtained results are appealing for the integration of BiFeO₃ into devices that may require relatively thick films with an enhanced surface area-to-volume ratio. The growth of this type of material by techniques other than electrodeposition is not straightforward. |
Ayudas: | European Commission 665919 European Commission 648454 European Commission 642642 Ministerio de Economía y Competitividad IJCI-2015-27030 Ministerio de Economía y Competitividad MAT2014-57960-C3-1-R Ministerio de Economía y Competitividad RYC2012-10839 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR- 1015 |
Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
Lengua: | Anglès |
Documento: | Article ; recerca ; Versió publicada |
Publicado en: | RSC advances, Vol. 7, issue 51 (2017) , p. 32133-32138, ISSN 2046-2069 |
6 p, 835.1 KB |