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Enhancing the Magnetic and Magneto-optical Properties of Praseodymium-substituted Bi-YIG Thin Film on Glass Substrate Prepared by Metal-organic Decomposition
Journal of Magnetics, Volume 26, Number 1, 31 Mar 2021, Pages 14-18
Abstract
Praseodymium (Pr)- and bismuth (Bi)-substituted yttrium (Y) iron (Fe) garnet (PrxY2-xBi1Fe5O12 where x =
0.25, 0.5, 1, and 2) thin films were prepared on glass substrate using a metal-organic decomposition (MOD)
method. Their magneto-optical properties were studied as a function of Pr concentration. Praseodymium has
two functions in PrxY2-xBi1Fe5O12 thin films, i.e., it (i) improves spin-orbit interaction strength and (ii) increases
magnetic properties; both are expected to strongly enhance the Faraday rotation (FR) angle of the thin film.
Our study demonstrated that the Pr1Y1Bi1Fe5O12 thin-film displayed the highest FR angle, of –13 °/μm, which
is 1.6-times higher than that of the PrxY2-xBi1Fe5O12 thin film without Pr dopant. The Pr1Bi1Y1Fe5O12 thin film
fabricated on a glass substrate by the MOD method displayed excellent MO performance and is a potential
candidate for application in optical devices.
0.25, 0.5, 1, and 2) thin films were prepared on glass substrate using a metal-organic decomposition (MOD)
method. Their magneto-optical properties were studied as a function of Pr concentration. Praseodymium has
two functions in PrxY2-xBi1Fe5O12 thin films, i.e., it (i) improves spin-orbit interaction strength and (ii) increases
magnetic properties; both are expected to strongly enhance the Faraday rotation (FR) angle of the thin film.
Our study demonstrated that the Pr1Y1Bi1Fe5O12 thin-film displayed the highest FR angle, of –13 °/μm, which
is 1.6-times higher than that of the PrxY2-xBi1Fe5O12 thin film without Pr dopant. The Pr1Bi1Y1Fe5O12 thin film
fabricated on a glass substrate by the MOD method displayed excellent MO performance and is a potential
candidate for application in optical devices.
Keywords: Bi-YIG thin films; Faraday rotation; magneto-optical properties; metal-organic decomposition; polyvinylpyrrolidone
DOI: https://doi.org/10.4283/JMAG.2021.26.1.014
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