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Structural and magnetic properties of CoFe2O4 thin films grown on isostructural lattice-matched substrates.
- Source :
-
Applied Physics Letters . 9/5/2022, Vol. 121 Issue 10, p1-6. 6p. - Publication Year :
- 2022
-
Abstract
- Epitaxial thin films of cobalt ferrite (CoFe2O4) are grown on two isostructural substrates, (001)-oriented MgGa2O4 and ZnGa2O4, using pulsed laser deposition. The substrates have a lattice mismatch of 1.26% and 0.70% with bulk CoFe2O4 (CFO) crystal. We have systematically investigated the structural and magnetic properties of the epitaxial CFO films on these substrates. X-ray diffraction and transmission electron microscopy result analysis reveal that the films deposited on spinel ZnGa2O4 are essentially free of defects and are under a small compressive strain, while films on MgGa2O4 show partial strain relaxation along with defect formation. Room temperature magnetization data indicate that CFO grown on ZnGa2O4 substrates have a bulk-like saturation magnetization of 420 emu/cc and a uniaxial substrate-induced anisotropy value of − 22.9 × 10 6 erg/cm3 with an anisotropy field as low as 60 kOe. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 121
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 159022353
- Full Text :
- https://doi.org/10.1063/5.0107242