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arXiv 0904.2242cond-mat.mtrl-scicond-mat.mes-hall
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少层石墨烯和铁电polymer薄膜混合器件中的非易失性存储效应

Nonvolatile memory effects in hybrid devices of few-layer graphene and ferroelectric polymer films

Yong-Joo Doh, Gyu-Chul Yi

摘要:

我们报告的制造和电气特性的少层石墨烯(FLG)设备涂有铁电聚合物层的聚(偏二氟乙烯/三氟乙烯)[P(VDF/TrFE)]。在浮动条件下观察到高度稳定和可靠的电阻变化,这取决于预先施加的背栅电压。混合FLG-P(VDF/TrFE)器件中的非易失性存储器功能归因于由P(VDF/TrFE)层的铁电极化引起的反射电场。

英文摘要:

We report on the fabrication and electrical characterization of few-layer graphene (FLG) devices coated with a ferroelectric polymer layer of poly(vinylidene fluoride/trifluoroethylene) [P(VDF/TrFE)]. Highly stable and reliable resistance changes were observed under floating conditions, which were dependent on the back gate voltage applied beforehand. Nonvolatile memory functionality in the hybrid FLG-P(VDF/TrFE) devices is attributed to a remanent electric field induced by the ferroelectric polarization of the P(VDF/TrFE) layer.

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