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231223s2004 xx ||||| 00| ||eng c |
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|a eng
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|a Mossa, S
|e verfasserin
|4 aut
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|a Ground-state clusters for short-range attractive and long-range repulsive potentials
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|c 2004
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|b nc
|2 rdacarrier
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|a Date Completed 24.04.2006
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|a Date Revised 15.11.2006
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|a published: Print
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|a Citation Status MEDLINE
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|a We report calculations of the ground-state energies and geometries for clusters of different sizes (up to 80 particles), where individual particles interact simultaneously via a short-ranged attractive potential, modeled with a generalization of the Lennard-Jones potential, and a long-ranged repulsive Yukawa potential. We show that for specific choices of the parameters of the repulsive potential, the ground-state energy per particle has a minimum at a finite cluster size. For these values of the parameters in the thermodynamic limit, at low temperatures and small packing fractions, where clustering is favored and cluster-cluster interactions can be neglected, thermodynamically stable cluster phases can be formed. The analysis of the ground-state geometries shows that the spherical shape is marginally stable. In the majority of the studied cases, we find that above a certain size, ground-state clusters preferentially grow almost in one dimension
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sciortino, F
|e verfasserin
|4 aut
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| 700 |
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|a Tartaglia, P
|e verfasserin
|4 aut
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| 700 |
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|a Zaccarelli, E
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 20(2004), 24 vom: 23. Nov., Seite 10756-63
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
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|g volume:20
|g year:2004
|g number:24
|g day:23
|g month:11
|g pages:10756-63
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