Direct imaging of Au and Ag clusters by scanning tunneling microscopy

Abraham, David W.; Sattler, Klaus; Ganz, Eric; Mamin, H. Jonathon; Thomson, Ruth Ellen; Clarke, John
October 1986
Applied Physics Letters;10/6/1986, Vol. 49 Issue 14, p853
Academic Journal
Clusters of Au and Ag deposited on the surface of highly oriented pyrolitic graphite have been imaged in air using a scanning tunneling microscope. An image is shown of a 350-Å silver cluster obtained in the constant-current (topographic) mode. In the variable-current mode, clusters of 6–20 atoms have been observed with atomic resolution. The motion and growth of clusters on the support are observed.


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