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Chemical solution synthesis and ferromagnetic resonance of epitaxial thin films of yttrium iron garnet

AuthorsLucas, I.; Jiménez-Cavero, Pilar; Vila-Fungueiriño, José M.; Magen, Cesar; Sangiao, S.; Teresa, José María de ; Morellón, Luis; Rivadulla, Francisco
Issue Date2017
PublisherAmerican Physical Society
CitationPhysical Review Materials 1(7): 074407 (2017)
AbstractWe report the fabrication of epitaxial Y3Fe5O12 (YIG) thin films on Gd3Ga5O12 (111) using a chemical solution method. Cubic YIG is a ferrimagnetic material at room temperature, with excellent magneto-optical properties, high electrical resistivity, and a very narrow ferromagnetic resonance, which makes it particularly suitable for applications in filters and resonators at microwave frequencies. But these properties depend on the precise stoichiometry and distribution of Fe3+ ions among the octahedral/tetrahedral sites of a complex structure, which hampered the production of high-quality YIG thin films by affordable chemical methods. Here we report the chemical solution synthesis of YIG thin films, with excellent chemical, crystalline, and magnetic homogeneity. The films show a very narrow ferromagnetic resonance (long spin relaxation time), comparable to that obtained from high-vacuum physical deposition methods. These results demonstrate that chemical methods can compete to develop nanometer-thick YIG films with the quality required for spintronic devices and other high-frequency applications.
Publisher version (URL)https://doi.org/10.1103/PhysRevMaterials.1.074407
Appears in Collections:(ICMA) Artículos
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