NDLI: Structural and Magnetic Properties of Multilayered TiO<formula formulatype=inline><tex Notation=TeX>$_{2}$</tex> </formula>/FM/TiO<formula formulatype=inline><tex Notation=TeX>$_{2}$</tex> </formula>/FM/CoFe<formula formulatype=inline><tex Notation=TeX>$_{2}$</tex> </formula>O<formula formulatype=inline><tex Notation=TeX>$_{4}$</tex> </formula> (FM: Fe or Py) Films Grown by Pulsed Laser Deposition

Content Provider	IEEE Xplore Digital Library
Author	Saccone, F.D. Vavassori, P. Berger, A.
Copyright Year	1965
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.
Sponsorship	IEEE Magnetics Society
Starting Page	4542
Ending Page	4546
Page Count	5
File Size	712758
File Format	PDF
ISSN	00189464
Volume Number	49
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic hysteresis Frequency modulation Iron Magnetic multilayers Cobalt Ferrites Magnetic separation magnetic superlattices Ferrite films magnetic materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Substrate Temperature Dependent Anomalous Magnetic Behavior in $hbox{CoFe}_{2}hbox{O}_{4}$ Thin Film

A contribution to the investigation of fine-particle solid solutions between cubic iron sesquioxide γFe2O3and cobalt ferrite CoFe2O4

Magnetic anisotropic properties in Fe/sub 3/O/sub 4/ and CoFe/sub 2/O/sub 4/ ferrite epitaxy thin films

Magnetic properties of Fe/sub 3/O/sub 4/ films grown on amorphous substrates by pulsed laser deposition

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Properties of CoFe2O4 Films Prepared by Annealing Co/Fe Multilayered Films in the Atmosphere

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Microstructure and magnetic properties of cobalt ferrite thin films

Magnetic Measurements of RE-Doped Cobalt Ferrite Thin Films

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