Large magnetoelectric effect in BaFe_(12)O_(19)-(Ba_(0.85)Ca_(0.15))(Zr_(0.1)Ti_(0.9))O_(3)particulate composite  

作　　者：Sheng Liu Pingping Gao Hongxiang Zou Bo Qin Jun He Lianwen Deng 

机构地区：[1]Hunan Provincial Key Laboratory of Vehicle Power and Transmission System,Hunan Institute of Engineering,Xiangtan 411104,China [2]College of Computational Science and Electronics,Hunan Institute of Engineering,Xiangtan 411104,China [3]School of Physics and Electronics,Central South University,Changsha 410083,China

出　　处：《Advanced Powder Materials》2022年第3期1-10,共10页先进粉体材料（英文）

基　　金：financially supported by the National Key Research and Development Program of China(2017YFA0204600);the National Natural Science Foundation of China(51902104).

摘　　要：Multiferroic composites with a large magnetoelectric response are gaining attractive interests for the design of magnetoelectric(ME)functional devices.In this work,the particulate ME composites(Ba_(0.85)Ca_(0.15))(Zr_(0.1)Ti_(0.9))O_(3)-xBaFe_(12)O_(19)(x=0,0.1,0.2,0.3,0.4 and 1)were prepared,and their structural,dielectric,magnetic,ferroelectric,piezoelectric properties and magnetoelectric coupling were systematically investigated.The composites consisted of only two chemically separated phases with well-bonded interface.Dielectric and impedance analyses indicated the co-contribution of grain and grain boundary to polarization.Well-saturated ferroelectric and magnetic hysteresis loops demonstrated multiferroic nature.ME response was investigated elaborately by employing magnetically induced polarization,together with measuring ME voltage coefficient and magnetodielectric value.Specifically,a large ME coefficient of 26.78 mV/cm·Oe was achieved for x=0.3,which is higher than that in single-phase BaFe_(12)O_(19)and its coupled composites.

关 键 词：Magnetoelectric effect Particulate composite Hexaferrite BaFe_(12)O_(19) Magnetoelastic interaction 

分 类 号：TB3[一般工业技术—材料科学与工程]