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Enhancement of ferroelectric performance in PVDF:Fe 3 O 4 nanocomposite based organic multiferroic tunnel junctions

Abstract : We report on the fabrication of organic multiferroic tunnel junction (OMFTJ) based on an organic barrier of Poly(vinylidene fluoride) (PVDF):Fe3O4 nanocomposite. By adding Fe3O4 nanoparticles into the PVDF barrier, we found that the ferroelectric properties of the OMFTJ are considerably improved compared to that with pure PVDF barrier. It can lead to a tunneling electroresistance (TER) of about 450% at 10K and 100% at room temperature (RT), which is much higher than that of the pure PVDF based device (70% at 10K and 7% at RT). OMFTJs based on the PVDF:Fe3O4 nanocomposite could open new functionalities in smart multiferroic devices via the interplay of the magnetism of nanoparticle with the ferroelectricity of the organic barrier.
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Submitted on : Friday, November 20, 2020 - 11:42:52 PM
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Xue Gao, Shiheng Liang, Anthony Ferri, Weichuan Huang, Didier Rouxel, et al.. Enhancement of ferroelectric performance in PVDF:Fe 3 O 4 nanocomposite based organic multiferroic tunnel junctions. Applied Physics Letters, American Institute of Physics, 2020, 116 (15), pp.152905. ⟨10.1063/1.5145316⟩. ⟨hal-02999585⟩

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