Structural and multiferroic properties of trilayer green magnetoelectric Co0.8Ni0.2Fe2O4/K0.25Na0.75Nb0.3/Co0.8Ni0.2Fe2O4 composite structure

被引：14

作者：

Darvade, Tulshidas C. ^{[1
,4
]}

Kadhane, Pravin S. ^{[1
]}

Baraskar, Bharat G. ^{[1
]}

James, Ajit R. ^{[2
]}

Reddy, V. R. ^{[3
]}

Kambale, Rahul C. ^{[1
]}

机构：

[1] Savitribai Phule Pune Univ, Dept Phys, Pune 411007, Maharashtra, India

[2] Def Met Res Lab, Hyderabad 500058, Telangana, India

[3] UGC DAE CSR, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India

[4] Sir Parashurambhau Coll, Dept Phys, Pune 411030, Maharashtra, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2020年 / 505卷

关键词：

Ferrite; Dielectric constant; Curie temperature; Magnetostriction; Magnetization; MAGNETOSTRICTIVE/PIEZOELECTRIC LAMINATE COMPOSITE; PIEZOELECTRIC PROPERTIES; VOLTAGE COEFFICIENTS; NICKEL FERRITE; MAGNETOSTRICTION; CERAMICS; COFE2O4; CO;

D O I：

10.1016/j.jmmm.2020.166733

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the structural, dielectric, magnetic-magnetostrictive, ferroelectric-piezoelectric and magnetoelectric (ME) properties of green (Pb-free) Co0.8Ni0.2Fe2O4/K0.25Na0.75NbO3/Co0.8Ni0.2Fe2O4 (CNFO/KNN/ CNFO) trilayer laminate (2-2) multiferroic composite structure. Magnetostrictive Co0.8Ni0.2Fe2O4 phase was synthesized by the solution combustion technique and the piezoelectric K0.25Na0.75NbO3 phase was synthesized by a solid-state method. The trilayer ME laminate composite structure of CNFO-KNN phases fabricated by silver epoxy adhesive bonding technique. The magnetostrictive Co0.8Ni0.2Fe2O4 phase exhibits a piezomagnetic coefficient of - 0.029 ppm/Oe at 1500 Oe magnetic field. The piezoelectric K0.25Na0.75NbO3 showed a piezoelectric charge coefficient of d(33 )similar to 57 pC/N. The trilayer CNFO/KNN/CNFO laminate structure reveals the ME coefficient (alpha(ME)) of 3.06 mV/Oe.cm which is relatively higher than the 0-3 connectivity composite structures. Here, we have discussed the fabrication technique for multiferroic laminate structures for the green magnetoelectric device having alpha(ME) similar to 3.06 mV/Oe.cm with their magnetic/magnetostrictive and ferroelectric/piezoelectric properties.

引用

页数：7

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