Xiaoming Hu et al 1999 Nanotechnology 10 209 doi:10.1088/0957-4484/10/2/317
Xiaoming Hu
,
, D Sarid
and P von Blanckenhagen![]()
A scanning tunnelling microscope with a gold tip was used to create clusters and form nano-dots, lines and corrals on a clean stepped Si(111) surface by applying a series of bias pulses to the tip-sample tunnelling junction. Nano-dots with diameters as small as a few nm can be realized. By decreasing the distances between nano-dots, it is possible to create continuous nano-lines of a few nm wide and over a few hundred nm long, which can be used as connections between micro- and nano-electronic components. A nano-corral of about 40 nm in diameter formed by many Au dots of a few nm in diameter each was also created on the Si(111) surface. Single electron tunnelling effects through nano-dots were studied and it was found that `Coulomb staircases' can be observed in the I-V (current-voltage) curve at room temperature through an Au tip-Au cluster-Si substrate double junction system.
81.16.Rf Nanoscale pattern formation
81.07.-b Nanoscale materials and structures: fabrication and characterization
Issue 2 (June 1999)
Received 28 September 1998
Xiaoming Hu et al 1999 Nanotechnology 10 209
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