Articles you may be interested inElectric field manipulation of nonvolatile magnetization in Au/NiO/Pt heterostructure with resistive switching effect Appl. Phys. Lett.

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The feasibility of synthesizing metal-oxide-metal (MOM) heterojunction nanowires in the Au-TiO 2-Au system is demonstrated. The synthesis method presented here entails sequential electroplating of Au and electro-deposition of amorphous titanium oxide (TiO x) inside nanoholes of anodic aluminium oxide (AAO) templates. This is followed by dissolving the template, and heat-treating the released nanowires, which results in the crystallization of the amorphous TiO x segment into nanocrystalline TiO 2. Detailed transmission electron microscopy (TEM) investigation has revealed that the nanocrystalline TiO 2 is orthorhombic (columbite) phase primarily. This synthesis method has the potential to provide better control over the characteristics and architectures of the resulting MOM nanowires. The Au-TiO 2-Au nanowires were incorporated into single-nanowire devices, fabricated using a direct-write method. Nonlinear current-voltage (I-V) responses were obtained for individual MOM nanowires. The heterojunctions in such MOM nanowires are likely to offer certain advantages over all-oxide nanowires, making the MOM nanowires potentially useful as one-dimensional building blocks in the multifunctional nanoelectronics of the future.

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