TY - JOUR AU - 이영백 DA - 2015/02 PY - 2015 UR - http://scitation.aip.org/content/aip/journal/apl/106/6/10.1063/1.4907220 UR - http://hdl.handle.net/20.500.11754/22140 AB - We present a simple drop-casting method for preparing multiferroic nano-composite film where BiFeO3 (BFO) nanoparticles (NPs) were evenly dispersed into polyvinyl alcohol (PVA) polymer. BFO NPs used in this work were synthesized by the conventional sol-gel method, having diameter of tens of nm and being in good crystallinity. The BFO NPs were loaded into a highly insulating PVA polymer solution as filler. The multiferroic properties of the film reveal ferromagnetic ordering due to the uncompensated spiral ordering and saturated ferroelectric curves due to the cut-off of current leakage. Moreover, the prepared films show high flexibility and their multiferroicities are preserved well even in a high curved condition, reflecting the possibility for fabricating wearable devices based on multiferroic materials. (C) 2015 AIP Publishing LLC. PB - AMER INST PHYSICS KW - MAGNETIC-PROPERTIES KW - THIN-FILMS KW - NANOPARTICLES KW - FERROELECTRICITY KW - POLARIZATION KW - SIZE KW - LA KW - Nanocomposites KW - Ferroelectric thin films KW - Nanopowders KW - Magnetic films KW - Multiferroics TI - Multiferroic properties of stretchable BiFeO3 nano-composite film VL - 106 DO - 10.1063/1.4907220 T2 - APPLIED PHYSICS LETTERS ER -