Angle-resolved-photoemission study of the electronic structure of the Si(001)c(4×2) surface
- 19 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (21), 2704-2707
- https://doi.org/10.1103/physrevlett.65.2704
Abstract
A wide-terrace single-domain Si(001)c(4×2) surface has been obtained by cooling a wide-terrace single-domain Si(001)2×1 surface to 200–80 K. Angle-resolved ultraviolet photoelectron spectra have been measured for the Si(001)c(4×2) surface at 200–100 K and compared with those for the Si(001)2×1 surface. The electronic structure of the Si(001)c(4×2) surface appears to be explained as that expected for ‘‘antiferromagnetic’’ order of asymmetric dimers of surface Si. The electronic structure of the Si(001)2×1 surface appears to be reminiscent of the c(4×2) surface.Keywords
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