Magnetoelectric Coupling Effect in Ferroelectric and Ferromagnetic Hybrid Thin Films

Title
Magnetoelectric Coupling Effect in Ferroelectric and Ferromagnetic Hybrid Thin Films
Author(s)
이희영황성옥엄유정김종우[김종우]류정호[류정호]구창영이재열
Keywords
MAGNETIC-PROPERTIES; DEVICES
Issue Date
201410
Publisher
TAYLOR & FRANCIS LTD
Citation
INTEGRATED FERROELECTRICS, v.157, no.1, pp.57 - 62
Abstract
Magnetoelectric (ME) effect in multiferroic or ferroelectric/ferromagnetic composite thin films occurs through the elastic coupling between the piezoelectric properties of ferroelectric and magnetostrictive properties of ferromagnetic component. To obtain high elastic coupling and ME effect, we introduced PZT [Pb(Zr-0.52, Ti-0.48)O-3] as a ferroelectric materials and CuFO (CuFe2O4) as ferromagnetic materials because of their high piezoelectric coefficient and magnetostrictive properties among various metal-oxide materials. To evaluate ME effect, we prepared CuFO/Pt/PZT/Pt hybrid thin films directly on Pt/TiO2/SiO2/Si substrate by using ion beam sputtering and spin-coating method. We investigated the microstructures and morphologies of hybrid thin films by XRD and SEM, the ferroelectric and ferromagnetic behaviors of hybrid films were examined by measuring polarization and magnetization hysteresis loops vs. electric and magnetic field. Magnetoelectric coefficients were calculated by measured magnetoelectric voltages using magnetoelectric measurement system. In this research, we'll discuss the relations between annealing temperatures and multiferroic properties.
URI
http://hdl.handle.net/YU.REPOSITORY/30640http://dx.doi.org/10.1080/10584587.2014.912080
ISSN
1058-4587
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공과대학 > 신소재공학부 > Articles
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