CH Yan, ZG Xu, T Zhu, ZM Wang, FX Cheng… - Journal of Applied …, 2000 - pubs.aip.org
La 0.7 Sr 0.3 MnO 3 and CoFe 2 O 4 samples have been prepared by a sol-gel process. A
mixture of the two samples was annealed at 800° C and the scanning electron micrograph …