Article Dans Une Revue Applied Physics Letters Année : 2020

Enhancement of ferroelectric performance in PVDF:Fe3O4 nanocomposite based organic multiferroic tunnel junctions

Didier Rouxel
Xavier Devaux
Mathieu Stoffel
Abir Nachawaty
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Yuan Lu

Résumé

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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hal-02999585 , version 1 (20-11-2020)

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Xue Gao, Shiheng Liang, Anthony Ferri, Weichuan Huang, Didier Rouxel, et al.. Enhancement of ferroelectric performance in PVDF:Fe3O4 nanocomposite based organic multiferroic tunnel junctions. Applied Physics Letters, 2020, 116 (15), pp.152905. ⟨10.1063/1.5145316⟩. ⟨hal-02999585⟩
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