Preparation of Co-containing spinel ferrite/Mn-Zn ferrite double-layer perpendicular recording media

Microstructure and magnetic properties of CoFe2O4 thin films deposited on Si substrates with an Fe3O4 under-layer

“…It is well known that the introduction of a suitable underlayer is essential to change the microstructure and adjust the magnetic properties of spinel type ferrite films to meet specific requirements [8][9][10]. For example, a Co-containing spinel ferrite thin film deposited on the NiZn ferrite under-layer has (400) preferential orientation showing hetero-epitaxial growth [9].…”

“…For example, a Co-containing spinel ferrite thin film deposited on the NiZn ferrite under-layer has (400) preferential orientation showing hetero-epitaxial growth [9]. NiZnFe 2 O 4 films grown on substrates with a ZnFe 2 O 4 under-layer exhibit better magnetic properties than those deposited directly on Si substrates, which indicates the importance of lattice match and structural similarity between the film and the under-layer [10].…”