Experimental and simulated results of room temperature single electron transistor formed by atomic force microscopy nano-oxidation process

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作者
Gotoh, Yoshitaka [1 ]
Matsumoto, Kazuhiko [1 ]
Bubanja, Vladimir [1 ]
Vazquez, Francisco [1 ]
Maeda, Tatsuro [1 ]
Harris, James S. [2 ]
机构
[1] Electrotechnical Laboratory MITI, 1-1-4 Umezono, Tsukuba, Ibaraki 305-8568, Japan
[2] Stanford University, Stanford, CA 94305, United States
关键词
Atomic force microscopy - Capacitance - Computer simulation - Mathematical models - Nanotechnology - Oxidation - Semiconductor device manufacture - Substrates - Temperature - Tunnel junctions;
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摘要
A planar-type single electron transistor (SET) was fabricated by the atomic force microscopy (AFM) nano-oxidation process. The fabricated SET showed the Coulomb oscillation characteristic with the period of about 2 V at room temperature. From the three-dimensional simulation, it is found out that the smaller the SET island size, the smaller the tunnel junction capacitance, and the tunnel junction capacitance shows a weak dependence on the tunnel junction width. Using the analytical model, the reason for this weak dependence was clarified.
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页码:2334 / 2337
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