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

We report the fabrication of epitaxial Y3⁢F⁡e5⁢O12 (YIG) thin films on G⁡d3⁢G⁡a5⁢O12 (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, w...

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Detalles Bibliográficos
Autores: Lucas, Irene, Jiménez-Cavero, Pilar, Vila Fungueiriño, José Manuel, Magén, Cesar, Sangiao, Soraya, Teresa, José Maria de, Morellón, Luis, Rivadulla Fernández, José Francisco
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/17027
Acceso en línea:http://hdl.handle.net/10347/17027
Access Level:acceso abierto
Palabra clave:Condensed Matter
Materials Physics
Thin films
Ferromagnetic resonance
Descripción
Sumario:We report the fabrication of epitaxial Y3⁢F⁡e5⁢O12 (YIG) thin films on G⁡d3⁢G⁡a5⁢O12 (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 F⁡e3+ 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.

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