Electronic states of metal atoms on the GaAs(110) surface studied by scanning tunneling microscopy
- 25 September 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (13), 1412-1415
- https://doi.org/10.1103/physrevlett.63.1412
Abstract
Using the scanning tunneling microscope, Au adsorbates are found to bond to Ga atoms on the GaAs(110) surface. A characteristic spectrum of band-gap states is observed for the Au adsorbates. Both donor and acceptor states are seen, and they are identified with the first and second electron states of the Au-Ga bond, respectively.Keywords
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