Open AccessInduced magneto-electric coupling at ferroelectric/ferromagnetic interface
Author(s) -
Jeffrey Carvell,
Ruihua Cheng,
Qian Yang
Publication year - 2013
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.4794873
Subject(s) - ferroelectricity , materials science , coercivity , electric field , polyvinylidene fluoride , polarization (electrochemistry) , multiferroics , polarization density , condensed matter physics , ferromagnetism , magnetic field , magnetization , nuclear magnetic resonance , composite material , polymer , optoelectronics , dielectric , chemistry , physics , quantum mechanics
We have demonstrated that at room temperature the electric polarization of a ferroelectric polymer, polyvinylidene fluoride (PVDF), in an artificial multiferroic structure can be controlled by applying an external magnetic field. We found that as the applied magnetic field is changed, the switching of electric polarization for the PVDF depends on the external magnetic field. We also noticed that both the electric coercivity and polarization of the PVDF polymer display hysteretic features as the applied magnetic field is changed. We found that the thickness of the PVDF layer has an effect on the magnetoelectric coupling strength in our samples. The coupling sensitivity increases as the PVDF layer thickness increases. It is possible to control the ferroelectric properties of a PVDF film by tuning the external magnetic field.
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