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Phase Transitions and Adsorption Isotherm in Multilayer Adsorbates with Lateral Interactions

S. B. Casal·Horacio S. Wio·S. Mangioni
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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.

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S. B. Casal, Horacio S. Wio, S. Mangioni. 2001-10-23. Phase Transitions and Adsorption Isotherm in Multilayer Adsorbates with Lateral Interactions. https://doi.org/10.1016/s0378-4371(02)00828-2

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