Preparation of Single-Crystal Ferrite Films
- 1 March 1967
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 38 (3) , 1129-1131
- https://doi.org/10.1063/1.1709510
Abstract
Single‐crystal films of spinel ferrites have been deposited epitaxially on MgO substrates from a molten‐salt solution by vaporizing the solvent. The ferrite constituents (oxides or carbonates) and anhydrous sodium carbonate are melted on a (100) cleavage surface of a MgO single crystal. The melt wets the MgO so that it spreads over the surface as a uniform, thin, liquid layer. The solution is maintained at 1100°–1250°C for 5–20 h in order to vaporize the solvent, thus depositing the ferrite. Crystals 5–50 μ thick and 1 cm2 area of NiFe2O4, Ni0.5Zn0.5Fe2O4, CoFe2O4, and Li0.5Fe2.5O4 (the latter using Li2CO3 as the molten‐salt solvent) have been grown by this method. The ferrite films grow with the same orientation as the substrate.This publication has 8 references indexed in Scilit:
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