Effect of Substituting Sr2+ for Gd3+ on Structural and Magnetoelectric Properties of W-Type Hexaferrite

Bruna da Costa Andrade; Marcelo Andrade Macedo

doi:10.4028/www.scientific.net/AMR.975.268

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 975Effect of Substituting Sr2+ for Gd3+ on Structural...

Effect of Substituting Sr²⁺ for Gd³⁺ on Structural and Magnetoelectric Properties of W-Type Hexaferrite

Abstract:

Sr_1-xGd_xCo₂Fe₁₆O_27-δ, (x = 0.05–0.20) was prepared via the proteic sol-gel process. Single-phase W-type hexaferrite doped with gadolinium was synthesized. The ferrite shows ferrimagnetic behavior with high saturation magnetization, low coercive field, low remnant magnetization, and a resistivity greater than 10⁷ Ω·cm. The substitution of Sr²⁺ for Gd³⁺ improved the magnetoelectric properties of the ferrite owing to the increase in the concentration of Fe²⁺ and improvement of electron conduction.

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Periodical:

Advanced Materials Research (Volume 975)

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268-273

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https://doi.org/10.4028/www.scientific.net/AMR.975.268

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Online since:

July 2014

Authors:

Bruna da Costa Andrade*, Marcelo Andrade Macedo

Keywords:

Hexaferrite, Magnetocrystalline, Magnetoelectric

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