ABSTRACT
In this chapter, the authors present a remarkably simple and easy technique for the simultaneous tuning of tunnel resistance of three nanogaps connected in series using the activation procedure. The tip shape of the nanogaps is sharpened in order to produce a field emission current caused by electric field concentration at the tip of the nanogap electrode. Activation" is based on moving atoms induced by the Fowler–Nordheim field emission current passing through the nanogaps. The authors perform simultaneous tuning of tunnel resistance of multiple nanogaps by a simple and easy method. The control of the tunnel resistance of three nanogaps was simultaneously achieved by performing the activation process for the series-connected nanogaps. The current flowing through nanogaps is dominated by an electron-tunneling process leading to a high electric field. It is suggested that the simultaneous control of the charging energy of the integrated single-electron transistors is possible with the preset current of the activation.
