ARE THE DIMERS OF THE SI(001)(2 X-1) SURFACE ANTIFERROMAGNETIC

Authors
VINCHON T OLES AM SPANJAARD D DESJONQUERES MC
Citation
T. Vinchon et al., ARE THE DIMERS OF THE SI(001)(2 X-1) SURFACE ANTIFERROMAGNETIC, Surface science, 287, 1993, pp. 534-538
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
287
Year of publication
1993
Part
A
Pages
534 - 538
Database
ISI
SICI code
0039-6028(1993)287:<534:ATDOTS>2.0.ZU;2-E
Abstract
Using a Hubbard Hamiltonian treated in the Hartree-Fock approximation, it is proposed that the (2 x 1) reconstruction of Si(001) is stabiliz ed by a two-dimensional (2 x 2) antiferromagnetic ordering of magnetic moments on the dimers. This provides a consistent explanation of the semiconducting character of the Si(001) surface without invoking any a symmetry of the dimers. These results are in agreement with a recent w ork by Artacho and Yndurain.