Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions
The phase diagram of a two-dimensional model system for colloidal particles at the air-water interface was determined using Monte Carlo computer simulations in the isothermic-isobaric ensemble. The micrometerrange binary colloidal interaction has been modeled by hard disklike particles interacting v...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
American Chemical Society
2006
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/8956/1/Predicting%20the%20Phase%20Diagram%20of%20Two-Dimensional%20Colloidal%20Systems%20with%20Long-Range.pdf |
| _version_ | 1824370879479414784 |
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| author | Mejía Rosales, Sergio Gil Villegas, Alejandro Ivlev, Boris I. Ruiz García, Jaime |
| author_facet | Mejía Rosales, Sergio Gil Villegas, Alejandro Ivlev, Boris I. Ruiz García, Jaime |
| author_sort | Mejía Rosales, Sergio |
| collection | Repositorio Institucional |
| description | The phase diagram of a two-dimensional model system for colloidal particles at the air-water interface was determined using Monte Carlo computer simulations in the isothermic-isobaric ensemble. The micrometerrange binary colloidal interaction has been modeled by hard disklike particles interacting via a secondary minimum followed by a weaker longer-range repulsive maximum, both of the order of kBT. The repulsive part of the potential drives the clustering of particles at low densities and low temperatures. Pinned voids are formed at higher densities and intermediate values of the surface pressure. The analysis of isotherms, translational and orientational correlation functions as well as structure factor gives clear evidence of the presence of a melting first-order transition. However, the melting process can be also followed by a metastable route through a hexatic phase at low surface pressures and low temperatures, before crystalization occurs at higher surface pressure |
| format | Article |
| id | eprints-8956 |
| institution | UANL |
| language | English |
| publishDate | 2006 |
| publisher | American Chemical Society |
| record_format | eprints |
| spelling | eprints-89562016-02-05T21:50:14Z http://eprints.uanl.mx/8956/ Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions Mejía Rosales, Sergio Gil Villegas, Alejandro Ivlev, Boris I. Ruiz García, Jaime Q Ciencias en General QC Física QD Química The phase diagram of a two-dimensional model system for colloidal particles at the air-water interface was determined using Monte Carlo computer simulations in the isothermic-isobaric ensemble. The micrometerrange binary colloidal interaction has been modeled by hard disklike particles interacting via a secondary minimum followed by a weaker longer-range repulsive maximum, both of the order of kBT. The repulsive part of the potential drives the clustering of particles at low densities and low temperatures. Pinned voids are formed at higher densities and intermediate values of the surface pressure. The analysis of isotherms, translational and orientational correlation functions as well as structure factor gives clear evidence of the presence of a melting first-order transition. However, the melting process can be also followed by a metastable route through a hexatic phase at low surface pressures and low temperatures, before crystalization occurs at higher surface pressure American Chemical Society 2006 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/8956/1/Predicting%20the%20Phase%20Diagram%20of%20Two-Dimensional%20Colloidal%20Systems%20with%20Long-Range.pdf http://eprints.uanl.mx/8956/1.haspreviewThumbnailVersion/Predicting%20the%20Phase%20Diagram%20of%20Two-Dimensional%20Colloidal%20Systems%20with%20Long-Range.pdf Mejía Rosales, Sergio y Gil Villegas, Alejandro y Ivlev, Boris I. y Ruiz García, Jaime (2006) Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions. The journal of physical chemistry B, 110. pp. 22230-22236. ISSN 1520-6106 |
| spellingShingle | Q Ciencias en General QC Física QD Química Mejía Rosales, Sergio Gil Villegas, Alejandro Ivlev, Boris I. Ruiz García, Jaime Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| title_full | Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| title_fullStr | Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| title_full_unstemmed | Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| title_short | Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions |
| title_sort | predicting the phase diagram of two dimensional colloidal systems with long range interactions |
| topic | Q Ciencias en General QC Física QD Química |
| url | http://eprints.uanl.mx/8956/1/Predicting%20the%20Phase%20Diagram%20of%20Two-Dimensional%20Colloidal%20Systems%20with%20Long-Range.pdf |
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