Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9594679 | Surface Science | 2005 | 6 Pages |
Abstract
We demonstrate that the Ba-induced Si(1Â 1Â 1)3Â ÃÂ 2 reconstruction is a physical realization of a one-dimensional antiferromagnetic Ising model with long-range Coulomb interactions. Monte Carlo simulations performed on a corresponding Coulomb-gas model, which we construct based on density-functional calculations, reveal an adsorbate-ordering phase transition at finite temperature. We show numerically that this unusual one-dimensional phase transition should be detectable by low-energy electron diffraction.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Steven C. Erwin, C. Stephen Hellberg,