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dc.contributor.author
Saccone, Fabio Daniel
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dc.contributor.author
Vavassori, Paolo
dc.contributor.author
Berger, Andreas
dc.date.available
2019-10-16T21:17:51Z
dc.date.issued
2013-04
dc.identifier.citation
Saccone, Fabio Daniel; Vavassori, Paolo; Berger, Andreas; Structural and magnetic properties of multilayered TiO2/FM/ TiO2/FM/CoFe2O4 (FM: Fe or Py) films grown by pulsed laser deposition; Institute of Electrical and Electronics Engineers; IEEE Transactions on Magnetics; 49; 8; 4-2013; 4542-4546
dc.identifier.issn
0018-9464
dc.identifier.uri
http://hdl.handle.net/11336/86109
dc.description.abstract
Two types of multilayered thin films of structure TiO2/FM/ TiO2/FM/CoFe2O4 with FM = Fe or Py were grown by means of the pulsed layer deposition technique with a total thickness of less than 350 nm. Their structural properties were analyzed by X-ray diffraction and the Fe K-edge absorption was measured by X-ray fluorescence in grazing incidence geometry. By means of near edge absorption X-ray spectroscopy (XANES), we retrieved information about the octahedral Fe+3 environment within the cobalt ferrite (CoFe2O4) films as well as the role of titanium oxide (TiO2) as a good protective layer for these multilayered systems. The bulk magnetic properties of both samples exhibit certain similarities: at 10 K, the coercive field of their hysteresis loops is enhanced to approximately 1 T, with an intermediate magnetization drop occurring at approximately 2000 Oe reverse field strength, indicating the separated magnetization reversal behavior of pinned and unpinned grains within the FM layers. In contrast to this low temperature field dependence, the collective magnetic behavior is gradual upon field inversion when hysteresis loops are measured at or near room temperature. By using the FORC diagram technique at room temperature, we investigated this gradual transition in more detail and identified clear differences in between the two FM layer materials.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Institute of Electrical and Electronics Engineers
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FERRITE FILMS
dc.subject
MAGNETIC MATERIALS
dc.subject
MAGNETIC SUPERLATTICES
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Structural and magnetic properties of multilayered TiO2/FM/ TiO2/FM/CoFe2O4 (FM: Fe or Py) films grown by pulsed laser deposition
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-09-27T21:03:29Z
dc.journal.volume
49
dc.journal.number
8
dc.journal.pagination
4542-4546
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Saccone, Fabio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
dc.description.fil
Fil: Vavassori, Paolo. CIC NanoGUNE; España
dc.description.fil
Fil: Berger, Andreas. CIC NanoGUNE; España. Basque Foundation for Science; España
dc.journal.title
IEEE Transactions on Magnetics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1109/TMAG.2013.2258331
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/6566177
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