Anisotropic particles with tetrahedral symmetry: Difference between revisions
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[[Image:patchy_4.png|thumb|right| Artists impression of a tetrahedral patchy particle]] | [[Image:patchy_4.png|thumb|right| Artists impression of a tetrahedral patchy particle]] | ||
The | The [[Phase diagrams |phase diagram]] of the tetrahedral [[Kern and Frenkel patchy model | Kern and Frenkel ]] [[patchy particles | patchy model]] <ref>[http://dx.doi.org/10.1021/jp9081905 F. Romano, E. Sanz and F. Sciortino "Role of the Range in the Fluid−Crystal Coexistence for a Patchy Particle Model", Journal of Physical Chemistry B '''113''' pp. 15133–15136 (2009)]</ref> | ||
exhibits the following solid phases: [[Building up a diamond lattice |diamond crystal]] (DC), | exhibits the following solid phases: [[Building up a diamond lattice |diamond crystal]] (DC), | ||
[[Building up a body centered cubic lattice | body centred cubic]] (BCC) and [[Building up a face centered cubic lattice |face centred cubic]] (FCC). The gas-liquid [[critical points | critical point]] becomes metastable with respect | [[Building up a body centered cubic lattice | body centred cubic]] (BCC) and [[Building up a face centered cubic lattice |face centred cubic]] (FCC). The gas-liquid [[critical points | critical point]] becomes metastable with respect | ||
Revision as of 14:43, 10 May 2010
The phase diagram of the tetrahedral Kern and Frenkel patchy model [1] exhibits the following solid phases: diamond crystal (DC), body centred cubic (BCC) and face centred cubic (FCC). The gas-liquid critical point becomes metastable with respect to the diamond crystal when the range of the interaction becomes short (roughly less than 15% of the diameter).
In contrast to isotropic models, the critical point becomes only weakly metastable with respect to the solid as the interaction range
narrows (from left to right in the figure).
See also
References
Related reading
- Jiří Kolafa and Ivo Nezbeda "Monte Carlo simulations on primitive models of water and methanol", Molecular Physics 61 pp. 161-175 (1987)
- Jonathan P. K. Doye, Ard A. Louis, I-Chun Lin, Lucy R. Allen, Eva G. Noya, Alex W. Wilber, Hoong Chwan Kok and Rosie Lyus "Controlling crystallization and its absence: proteins, colloids and patchy models", PCCP 9 pp. 2197-2205 (2007)
- Flavio Romano, Piero Tartaglia and Francesco Sciortino "Gas–liquid phase coexistence in a tetrahedral patchy particle model", Journal of Physics: Condensed Matter 19 322101 (2007)