کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1329444 | 1500084 | 2015 | 5 صفحه PDF | دانلود رایگان |
Scandium rich cobalt ferrites CoyFe3−x−yScxO4 with y~1 never obtained in bulk could be stabilized in pulsed laser deposited thin films. Scandium contents of up to x=1 are reached. The cell parameter increases versus x as awaited when considering the size of scandium. It is equal to 0.8620 nm for x=1, significantly higher than that of CoFe2O4 (0.8396 nm). The lattice mismatch between the MgO (100) substrate and the scandium-containing spinel leads to an increased roughness. Cobalt is displaced from the octahedral site by Sc and mainly occupies the tetrahedral sites for high x values.
Magnification of the XRD patterns recorded on thin films of CoFe2-xScxO4 for x=0, 0.45, 1 and 1.2, the arrows denote the (004) and (008) diffraction lines of the spinel phaseFigure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 232, December 2015, Pages 118–122