Multiferroic behaviour of epitaxial NiFe2O4--BaTiO3 heterostructures |
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| Authors: | Zhang Yi Deng Chao-Yong Ma Jing Lin Yuan-Hua and Nan Ce-Wen |
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| Institution: | Department of Materials Science and Engineering, State Key
Laboratory of New Ceramics and Fine Processing, Tsinghua
University, Beijing 100084, China |
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| Abstract: | Multiferroic NiFe2O4--BaTiO3 (BTO) bilayered
thin films are epitaxially grown on (001) Nb-doped SrTiOmagnetoelectric effect,
epitaxial heterostructure, nickel ferrite, multiferroicsProject supported by the State Key
Development Program for Basic Research of China (Grant No
2002CB613303) and the National High Technology Research and
Development Program for Advanced Materials of China (Grant No
2006AA03Z101) and the National Natural Science Foundation of China
(Grant Nos 10574078 and 50621201).7580, 8115I, 6865Multiferroic NiFe2O4--BaTiO3 (BTO) bilayered
thin films are epitaxially grown on (001) Nb-doped SrTiOmagnetoelectric effect,
epitaxial heterostructure, nickel ferrite, multiferroicsProject supported by the State Key
Development Program for Basic Research of China (Grant No
2002CB613303) and the National High Technology Research and
Development Program for Advanced Materials of China (Grant No
2006AA03Z101) and the National Natural Science Foundation of China
(Grant Nos 10574078 and 50621201).7580, 8115I, 6865Multiferroic NiFe2O4--BaTiO3 (BTO) bilayered
thin films are epitaxially grown on (001) Nb-doped SrTiOmagnetoelectric effect,
epitaxial heterostructure, nickel ferrite, multiferroicsProject supported by the State Key
Development Program for Basic Research of China (Grant No
2002CB613303) and the National High Technology Research and
Development Program for Advanced Materials of China (Grant No
2006AA03Z101) and the National Natural Science Foundation of China
(Grant Nos 10574078 and 50621201).7580, 8115I, 6865Multiferroic NiFe2O4--BaTiO3 (BTO) bilayered
thin films are epitaxially grown on (001) Nb-doped SrTiO$_{3}$ (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. |
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| Keywords: | magnetoelectric effect epitaxial heterostructure nickel ferrite multiferroics |
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