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Published in: Journal of Sol-Gel Science and Technology 2/2023

26-08-2023 | Original Paper

Fabrication of elongated YIG nanostructures by the sol-gel method supported on alumina membranes

Authors: P. H. Pessoa, L. K. S. Assis, E. L. T. França, A. S. Carvalho, D. M. Oliveira, E. Padrón-Hernández

Published in: Journal of Sol-Gel Science and Technology | Issue 2/2023

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Abstract

This work presents a new methodology for fabrication of membrane-assisted elongated YIG nanostructures through the sol-gel method using low-cost materials, and the estimation of the average size of the geometries formed within the pores through ferromagnetic resonance measurements. A precursor solution was deposited on the internal surface of porous aluminum oxide membrane, using an assembly consisting of a vacuum system coupled to an apparatus, which assists in the entry of the used precursor solution, breaking the barriers related to the existing surface tension, with subsequent heat treatment to form the single phase of yttrium iron garnet (YIG). The data collected by X-ray diffraction and Raman spectroscopy indicated this result. The study of the contact angle of the precursor solution and the alumina template indicated great compatibility, an angle of 35.4°. SEM analysis showed that elongated structures were deposited inside the pore’s walls, with different lengths up to 3 micrometers and the EDS analysis showed the presence of the main elements of the YIG phase. The Kittel’s equation and FMR spectral data were used to estimate the mean size of the elongated nanostructures. We found six different size categories with 1856, 1768, 1661, 1588, 1570, 1498 nm . The methodology proved to be efficient for the characterization of elongated YIG nanostructures, becoming a perspective of future applications.

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Literature
21.
go back to reference Hiemenz PC, Rajagopalan R (2016) Principles of colloid and surface chemistry, revised and expanded. Undergraduate Chemistry: A Series of Textbooks, 3ª Edn. CRC Press (18 March 1997) Hiemenz PC, Rajagopalan R (2016) Principles of colloid and surface chemistry, revised and expanded. Undergraduate Chemistry: A Series of Textbooks, 3ª Edn. CRC Press (18 March 1997)
Metadata
Title
Fabrication of elongated YIG nanostructures by the sol-gel method supported on alumina membranes
Authors
P. H. Pessoa
L. K. S. Assis
E. L. T. França
A. S. Carvalho
D. M. Oliveira
E. Padrón-Hernández
Publication date
26-08-2023
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 2/2023
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-023-06216-5

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