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Publication
Applied Physics Letters
Paper
Magnetic anisotropy of Eu0.65Y2.35Fe 3.8Ga1.2O12 films grown on garnet substrates with different lattice parameters
Abstract
The effect of lattice mismatch (stress) on magnetic anisotropy is studied in epitaxial films of a Eu0.65Y2.35Fe3.8Ga 1.2O12 garnet grown on a series of garnet substrates with different lattice parameters. These garnet films have a negative magnetostrictive coefficient (λ ≃ 0.5 × 10-6) as predicted by simple magnetic dilution theory. A "growth"-induced magnetic anisotropy (Ku ≃ 8300 erg/cm3) will exist for all of these films even when they are grown on a substrate with a perfect lattice match. Anisotropy can be increased by using an increased substrate rotation rate during film deposition. © 1973 American Institute of Physics.