Nanoscale deposition from a metal-covered scanning tunneling microscope tip

A fabrication method using a metal-covered scanning tunneling microscope tip has been developed to provide a nanoscale deposition method with various metal species. Nanoscale deposition has been carried out on highly oriented pyrolytic graphite with a core tungsten tip, a gold-covered tungsten tip,...

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Bibliographic Details
Published in:Journal of applied physics 1996-03, Vol.79 (6), p.3348-3350
Main Authors: Andoh, Hiroki, Yokoi, Naoki, Takai, Mikio
Format: Article
Language:English
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Summary:A fabrication method using a metal-covered scanning tunneling microscope tip has been developed to provide a nanoscale deposition method with various metal species. Nanoscale deposition has been carried out on highly oriented pyrolytic graphite with a core tungsten tip, a gold-covered tungsten tip, and an aluminum-covered tungsten tip, by applying tip positive voltage pulses. The threshold voltage, above which deposition occurred, showed a linear dependence on the tip-sample separation and differed for tip material. This suggests that the fabrication mechanism is field-induced and the deposition takes place by the transfer of tip material to the sample.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.361238