Anomalies in the Heat-Capacity Signatures of Submonolayer Adsorbates with Attractive Lateral Interactions.

Abstract

The analytic closed form of the heat-capacity signatures previously derived for the McQuistan-Hock (MQH) model of a lattice gas is applied to a various adsorbed systems for which the lateral interaction varies from a few meV to about 300 meV. It is shown that whenever the adsorption system can be described by a two-dimensional gas on which the substrate effects are less important than the adatom-adatom interactions, the computed temperatures at which the heat-capacity signatures display their maximum are in excellent agreement with the experimental measurements. Keywords: Heat capacities, Submonolayer adsorbates, Attractive lateral interactions, Anomalies, McQuistan hock model, Two dimensional lattice.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1988
Accession Number
ADA190736

Entities

People

  • Franco Battaglia
  • Thomas F. George
  • Young S. Kim

Organizations

  • University at Buffalo

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  • Advanced Electronics
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  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
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