Structural, dielectric and magnetoelectric coupling analysis in SrBi2Nb2O9-CoFe2O4composites

被引：3

作者：

Chaudhary, Prachi ^{[1
]}

Dabas, Samiksha ^{[1
]}

Kumar, Manish ^{[2
]}

Kumar, Arvind ^{[2
]}

Thakur, O. P. ^{[1
]}

机构：

[1] NSUT, Mat Anal & Res Lab, Dept Phys, New Delhi 110078, India

[2] Univ Delhi, ARSD Coll, Dept Phys, Expt Res Lab, New Delhi 110021, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2020年 / 43卷 / 01期

关键词：

Magnetoelectric coupling; ferroelectricity; ferromagnetism; dielectric; FERROELECTRIC THIN-FILMS; ELECTRICAL-PROPERTIES; COMBUSTION SYNTHESIS; IMPEDANCE PROPERTIES; MULTIFERROICITY; MICROSTRUCTURE; TEMPERATURE; SRBI2TA2O9; COERCIVITY; CERAMICS;

D O I：

10.1007/s12034-020-02216-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferroelectric-magnetic composites of SrBi2Nb2O9-CoFe2O4(SBN-CFO) were synthesizedviaconventional solid state reaction route. The powder X-ray diffraction, Raman spectroscopy and scanning electron microscopy measurements confirm the existence of two chemically separated phases and phase purity in the SBN-CFO composites. Magnetization measurements confirm the enhanced values of the magnetic parameters. The change in the area of the ferroelectricP vs. Eloops with frequency confirms the enhanced ferroelectric nature of the SBN-CFO composites. The quantified maximum values of magnetoelectric coefficient (alpha) are observed from theP vs. Eloop measurements in the influence of applied magnetic field and found to be 4.475 mV cm(-1)Oe(-1)at 688 Oe for SBN-0.1CFO and 3.389 mV cm(-1)Oe(-1)at 1000 Oe for SBN-0.2CFO composites, respectively. The shifting in the peaks of temperature-dependent dielectric maxima towards the higher temperature side confirms the relaxor behaviour in the SBN-CFO composite samples.

引用

页数：12

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