Browsing by Author "Wu, Tai-bor"

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Interface effects on the magnetoelectric properties of (00l)-oriented Pb(Zr0.5Ti0.5)O-3/CoFe2O4 multilayer thin films
(2008-10-01)
Lin, Rueijer
;
Wu, Tai-bor
;
Chu, Ying-Hao
;
材料科學與工程學系
;
Department of Materials Science and Engineering
(00l)-oriented Pb(Zr0.5Ti0.5)O-3/CoFe2O4 (PZT/CFO) multilayer thin films were fabricated with a change in stacking periodicity. When the periodicity increased, a size effect on both ferroelectric and ferromagnetic properties was observed. This result indicates the existence of a passive layer at the PZT/CFO interface. Consequently, the magnetoelectric coupling was significantly degraded with increasing stacking periodicity. From transmission electron microscopy analysis, in addition to slight interdifussion, a highly roughened interface structure is believed to be responsible for the formation of the passive layer. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.