Multiferroic behaviour of epitaxial NiFe2O4-BaTiO3 heterostructures
Zhang Yi;Deng Chao-Yong;Ma Jing;Lin Yuan-Hua;Nan Ce-Wen
【期刊名称】《中国物理：英文版》 【年(卷),期】2008(017)010
【摘要】Multiferroic NiFe2O4(NFO)-BaTiO3(BTO)bilayered thin films are epitaxially grown on(001)Nb-doped SrTiO3(STO)substrates by pulsed-laser deposition(PLD).Different growth sequences of NFO and BTO on the substrate yield two kinds of epitaxial heterostructures with(001)-orientation,i.e.(001)-NFO/(001)-BTO/substrate
and(001)-BTO/(001)-
NFO/substrate.Microstructure studies from x-ray diffraction(XRD)and electron
microscopies
show
differences
between
these
two
heterostructures,which result in different multiferroic behaviours.The heterostructured composite films exhibit good coexistence of both ferroelectric
and
ferromagnetic
properties,in
particular,obvious
magnetoelectric(ME)effect on coupling response. 【总页数】7页(3910-3916)
【关键词】magnetoelectric effect;epitaxial heterostructure;nickel ferrite;multiferroics
【作者】Zhang Yi;Deng Chao-Yong;Ma Jing;Lin Yuan-Hua;Nan Ce-Wen 【作者单位】Department of Materials Science and Engineering,State Key Laboratory
of
New
Ceramics
and
Fine
Processing,Tsinghua
Multiferroic behaviour of epitaxial NiFe2O4-BaTiO3 heterostructures
