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Phys. Rev. Lett. 55, 2032 - 2034 (1985)

Real-Space Observation of Surface States on Si(111) 7×7 with the Tunneling Microscope

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R. S. Becker, J. A. Golovchenko, D. R. Hamann, and B. S. Swartzentruber
AT&T Bell Laboratories, Murray Hill, New Jersey 07974

Received 25 July 1985

We have observed surface states indigenous to the Si(111) 7×7 superlattice with the tunneling microscope. The data show the states' energies and strengths to be strongly dependent on position in the unit mesh. Implications of this for structural models of the 7×7 superlattice are discussed.


©1985 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.55.2032
DOI: 10.1103/PhysRevLett.55.2032
PACS: 68.20.+t

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