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http://hdl.handle.net/2445/33659
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DC Field | Value | Language |
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dc.contributor.author | Ostos, C. | - |
dc.contributor.author | Raymond, Oscar | - |
dc.contributor.author | Suarez-Almodovar, N. | - |
dc.contributor.author | Bueno-Baqués, D. | - |
dc.contributor.author | Mestres i Vila, Ma. Lourdes | - |
dc.contributor.author | Siqueiros, J. M. | - |
dc.date.accessioned | 2013-02-01T08:56:27Z | - |
dc.date.available | 2013-02-01T08:56:27Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | http://hdl.handle.net/2445/33659 | - |
dc.description.abstract | In this study, (011)-highly oriented Sr, Nb co-doped BiFeO3 (BFO) thin films were successfully grown on SrRuO3/Si substrates by rf-magnetron sputtering. The presence of parasite magnetic phases was ruled out based on the high resolution x-ray diffraction data. BFO films exhibited a columnar-like grain growth with rms surface roughness values of 5.3 nm and average grain sizes of 65-70 nm for samples with different thicknesses. Remanent polarization values (2Pr) of 54 lC cm 2 at room temperature were found for the BFO films with a ferroelectric behavior characteristic of an asymmetric device structure. Analysis of the leakage mechanisms for this structure in negative bias suggests Schottky injection and a dominant Poole-Frenkel trap-limited conduction at room temperature. Oxygen vacancies and Fe3þ/Fe2þ trap centers are consistent with the surface chemical bonding states analysis from x-ray photoelectron spectroscopy data. The (011)-BFO/ SrRuO3/Si film structure exhibits a strong magnetic interaction at the interface between the multiferroic film and the substrate layer where an enhanced ferromagnetic response at 5 K was observed. Zero-field cooled (ZFC) and field cooled (FC) magnetization curves of this film system revealed a possible spin glass behavior at spin freezing temperatures below 30 K depending on the BFO film thickness. | - |
dc.format.extent | 8 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Institute of Physics | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1063/1.3610428 | - |
dc.relation.ispartof | Journal of Applied Physics, 2011, vol. 110, p. 024114-1-024114-7 | - |
dc.relation.uri | https://doi.org/10.1063/1.3610428 | - |
dc.rights | (c) American Institute of Physics , 2011 | - |
dc.source | Articles publicats en revistes (Química Inorgànica i Orgànica) | - |
dc.subject.classification | Pel·lícules fines | - |
dc.subject.classification | Ferroelectricitat | - |
dc.subject.classification | Metall-òxid-semiconductors complementaris | - |
dc.subject.classification | Espintrònica | - |
dc.subject.classification | Niobi | - |
dc.subject.other | Thin films | - |
dc.subject.other | Ferroelectricity | - |
dc.subject.other | Complementary metal oxide semiconductors | - |
dc.subject.other | Spintronics | - |
dc.subject.other | Niobium | - |
dc.title | Highly textured Sr, Nb, co-doped BiFeO3 thin films grown on SrRuO3/Si substrates by rf-sputtering | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 607816 | - |
dc.date.updated | 2013-02-01T08:56:27Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
Files in This Item:
File | Description | Size | Format | |
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607816.pdf | 1.75 MB | Adobe PDF | View/Open |
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