Sequential desorption of dimers from square lattices: A novel mechanism for phase transitions

dc.creatorManzi, Sergio Javier
dc.creatorBoscoboinik, J. A.
dc.creatorBelardinelli, Rolando Elio
dc.creatorPereyra, Victor Daniel
dc.date2010-10
dc.identifierhttp://hdl.handle.net/11336/14147
dc.identifierManzi, Sergio Javier; Boscoboinik, J. A.; Belardinelli, Rolando Elio; Pereyra, Victor Daniel; Sequential desorption of dimers from square lattices: A novel mechanism for phase transitions; Elsevier Science; Physica A: Statistical Mechanics And Its Applications; 389; 19; 10-2010; 4116-4126
dc.identifier0378-4371
dc.descriptionThis work describes a novel mechanism for phase transitions during desorption, involving the formation of lattice size dependent intermediate states when there is enough adsorbate mobility. Monte Carlo simulations are performed to analyze the mechanism of the thermal desorption for adsorbed homonuclear dimers on two-dimensional square lattices. The latticegas model with nearest-neighbor repulsive interactions between particles is implemented to study the cases of mobile (with diffusion) and immobile desorption. The number of peaks for the immobile desorption spectra is related to the connectivity of the adsorbed species for both monomer and dimer molecules. However, for the case of mobile desorption, the spectra give information about the desorption mechanism, which differs significantly for monomers and dimers, particularly when the initial temperatures correspond to the critical region.
dc.descriptionFil: Manzi, Sergio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina. Universidad Nacional de San Luis; Argentina
dc.descriptionFil: Boscoboinik, J. A.. University Of Wisconsin; Estados Unidos
dc.descriptionFil: Belardinelli, Rolando Elio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina. Universidad Nacional de San Luis; Argentina
dc.descriptionFil: Pereyra, Victor Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina. Universidad Nacional de San Luis; Argentina
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dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378437110004851
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2010.05.055
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subjectSurface Science
dc.subjectThermal Programmed Desorption
dc.subjectMonte Carlo
dc.subjectPhase Transitions
dc.subjecthttps://purl.org/becyt/ford/1.3
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleSequential desorption of dimers from square lattices: A novel mechanism for phase transitions
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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