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Weak ferromagnetism and exchange bias effect in Co1+yAl2-yO4/SiO2 nanocomposites
(Journal of Alloys and Compounds, 2021)
Nanocomposites made of magnetic spinel oxide Co1+yAl2-yO4 nanoparticles (NPs) with y = 0.93, 1.20 and 1.34 dispersed in an amorphous SiO2 matrix were prepared by a sol-gel method. The average crystallite size DXRD of about ...