Evidence of room temperature magnetodielectric and cluster glass behavior of Sr substituted Y-type Ba2Mg2Fe11.48Mn0.52O22 hexaferrite

Md.F. Abdullah,S. Devi,R. Jena,K. Chandrakanta,P. Pal,C.S. Yadav,A.K. Singh

Journal of Magnetism and Magnetic Materials（2022）

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摘要

•Sr substituted hexaferrites possess a progressively higher spin order.•Single and double cluster-glass transitions are observed for the lowest and higher doped samples repectively.•Intrinsic magnetodielectric (MD) effect increases with increasing Sr concentration.•Spin-phonon coupling originated MD effect is confirmed using Haverliak-Negami and Lyddane-Teller equations.

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关键词

Magnetodielectrics,Magnetoelectric effect,Spin-phonon coupling,Metamagnetic transition,Spin-glass/cluster-glass

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