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Phys. Rev. Lett. 81, 2296–2299 (1998)

Theory of the “Honeycomb Chain-Channel” Reconstruction of M/Si(111)- (3×1)

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Steven C. Erwin
Complex Systems Theory Branch, Naval Research Laboratory, Washington, D.C. 20375

Hanno H. Weitering
Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, and Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

Received 4 May 1998; published in the issue dated 14 September 1998

First-principles electronic-structure methods are used to study a structural model for Ag/Si(111)- (3×1), recently proposed on the basis of transmission electron diffraction data. The fully relaxed geometry for this model is far more energetically favorable than any previously proposed, partly due to the unusual formation of a Si double bond in the surface layer. The calculated electronic properties of this model are in complete agreement with data from angle-resolved photoemission and scanning tunneling microscopy.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.2296
DOI:
10.1103/PhysRevLett.81.2296
PACS:
68.35.Bs, 73.20.At, 79.60.Bm