Abstract
Abstract Composite thin films of BaTiO3 (BTO) and CoFe2O4 (CFO) on (001)-oriented SrTiO3 (STO) substrates were prepared by the spin coating technique using solutions of the corresponding metal cations in N,N-dimethylformamide/acetic acid. Ten and five individual coating steps for the bottom perovskite layer and the top ferrite layer resulted in thicknesses of 250 nm and 200 nm, respectively. X-ray diffraction (XRD) and Raman spectroscopy proved the formation of BaTiO3 and CoFe2O4 without any detectable impurities. Rocking curve scans, reciprocal space mapping (RSM) and pole figures clearly demonstrated the epitaxial growth of both the perovskite and the ferrite layer, i.e. STO(001)[100]||BTO(001)[100]||CFO(001)[100]. Furthermore, scanning electron microscopy (SEM) investigations revealed smooth interfaces and dense films. From atomic force microscopy (AFM) surface scans, a roughness of about 8 nm was deduced. A saturation magnetization of about 350 emu·cm−3 was found and the samples showed only a small magnetic anisotropy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
