Ferroelectric, dielectric, ferromagnetic and magnetoelectric properties of the multiferroic heteroepitaxial NiFe2O4/Ba0.85Ca0.15Ti0.9Zr0.1O3 composite thin films deposited via PLD

被引：9

作者：

Dai, Qingping ^{[1
,2
]}

Wu, Dongni ^{[1
,2
]}

Guo, Kaixin ^{[1
]}

Zhang, Jun ^{[1
]}

Zhang, Min ^{[1
]}

Cui, Ruirui ^{[1
]}

Deng, Chaoyong ^{[1
]}

机构：

[1] Guizhou Univ, Coll Big Data & Informat Engn, Key Lab Elect Composites Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China

[2] Guizhou Normal Univ, Sch Phys & Elect Sci, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Guizhou, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 20期

关键词：

IN-SITU; CERAMICS; GROWTH;

D O I：

10.1007/s10854-018-9828-z

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Heterostructured NiFe2O4/Ba0.85Ca0.15Ti0.9Zr0.1O3 (NFO/BCZT) composite thin films grown epitaxially on (100)-SrRuO3/SrTiO3 substrate (SrRuO3 is used as the bottom electrode) were prepared via pulse laser deposition. Phase formation of the tetragonal BCZT and cubic NFO were confirmed in X-ray diffractograms. A low RMS roughness and a smaller grain size were calculated from the surface microtopography. Physical properties testing indicated that such multiferroic heteroepitaxial composite thin films exhibit simultaneously excellent ferroelectric, dielectric, ferromagnetic properties, as well as conspicuous magnetoelectric effects. The saturated and remnant polarizations of NFO/BCZT film are about 35.79 and 12.43 mu C cm(-2) respectively, the magnetoelectric coupling coefficient reaches up to about 93 mV cm(-1) Oe(-1) at a bias magnetic field of 800 Oe, which is expected a bright application prospect in new storage technology and the medical field.

引用

页码：17333 / 17340

页数：8

共 34 条

[1] Relationship between electromechanical properties and phase diagram in the Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 lead-free piezoceramic [J].