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.
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页数：7
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