Statistical mechanics of the vicinal surfaces with adsorption

[摘要] We study the vicinal surface with adsorption below the roughening temperature, using the restricted solid-on-solid model coupled with the Ising model. By the product-wavefunction renormalization group method, we calculate the surface gradient p and the adsorption coverage Theta as a function of the Andreev field eta which makes surface tilt. Combining Monte Carlo calculations, we show that there emerges effective attraction between the steps. This attractive interaction leads to instability against step bunching. (C) 2001 Elsevier Science B.V. All rights reserved.

[发布日期] 2001-11-01

[效力级别]  Proceedings Paper

[关键词] equilibrium thermodynamics and statistical mechanics;Ising models;Monte Carlo simulations;faceting;step formation and bunching;surface tension;surface thermodynamics (including phase transitions);vicinal single crystal surfaces