Phase Transitions and Adsorption Isotherm in Multilayer Adsorbates with Lateral Interactions
arXiv:cond-mat/0110475 · doi:10.1016/S0378-4371(02)00828-2
Abstract
We analyze here a model for an adsorbate system composed of many layers by extending a theoretical approach used to describe pattern formation on a monolayer of adsorbates with lateral interactions. The approach shows, in addition to a first order phase transition in the first layer, a transition in the second layer together with evidence of a "cascade" of transitions if more layers are included. The transition profiles, showing a staircase structure, corroborate this picture. The adsorption isotherm that came out of this approach is in qualitative agreement with numerical and experimental results.
Submited to Physica A, LaTex, 22 pgs, 6 figures
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