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Influence of a TiO2 buffer layer on the magnetic properties of anatase Co:TiO2 thin films
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10.1063/1.4706570
/content/aip/journal/jap/111/8/10.1063/1.4706570
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/8/10.1063/1.4706570
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AFM image of the SrTiO3 substrate surface after the chemical treatment and annealing, showing the formation of large, atomic flat, well regulated terraces. The inset shows a height profile corresponding to the indicated line.

Image of FIG. 2.
FIG. 2.

2- x-ray diffraction selected area scans of 40 nm thick Co:TiO2 films with and without the 5 nm thick TiO2 layer. The scans were shifted vertically for better visibility. The inset shows the XRD rocking curve for the buffered film.

Image of FIG. 3.
FIG. 3.

AFM images of Co:TiO2 films grown grown (a) with and (b) without the TiO2 buffer layer.

Image of FIG. 4.
FIG. 4.

Magnetic hysteresis loops performed at 5 K for the (a) unbuffered and (b) buffered Co:TiO2 films and on the bare SrTiO3 substrate.

Image of FIG. 5.
FIG. 5.

The Ti and Co 2p XPS spectra for the unbuffered Co:TiO2 film.

Image of FIG. 6.
FIG. 6.

Cross-sectional bright field image of the Co:TiO2 unbuffered film. Inset shows a high resolution TEM image of the emphasized region containing surface clusters.

Image of FIG. 7.
FIG. 7.

EDX elemental mappings of a region in the unbuffered Co:TiO2 film containing surface clusters.

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/content/aip/journal/jap/111/8/10.1063/1.4706570
2012-04-27
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of a TiO2 buffer layer on the magnetic properties of anatase Co:TiO2 thin films
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/8/10.1063/1.4706570
10.1063/1.4706570
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