Effect of tip morphology on images obtained by scanning tunneling microscopy
- 15 August 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (5) , 2863-2866
- https://doi.org/10.1103/physrevb.36.2863
Abstract
We present several images of the Si(111)7×7 reconstruction showing the effects of simultaneous tunneling from more than one atom on the tip. The observed topographies are described as a superposition of two 7×7 adatom patterns coming from a double tip, with a variety of distances between the two tips. Tips placed as closely as 3 Å can still produce two distinct images, demonstrating that each image originates from a single atom on the tip.Keywords
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