Volume 85, Number 3, February 2009
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||13 February 2009|
Depletion interaction of two spheres —Full density functional theory vs. morphometric results
Institut für Physik, WA 331, Johannes-Gutenberg-Universität Mainz - D-55099 Mainz, Germany, EU
2 Max-Planck-Institut für Metallforschung - Heisenbergstr. 3, 70569 Stuttgart, Germany, EU
3 ITAP, Universität Stuttgart - Pfaffenwaldring 57, 70569 Stuttgart, Germany, EU
4 Department for the Modeling of Physico-Chemical Processes, Maria Curie-Sklodowska University 20-031 Lublin, Poland, EU
Corresponding author: email@example.com
Accepted: 19 January 2009
Morphological thermodynamics is employed to calculate the depletion potential between two big hard spheres in a solvent of small spheres. Thereby, the potential is characterized solely by the geometric properties of the solvent-accessible surface of the two-sphere configuration in the depletion region. Comparison with explicit density functional theory calculations using accurate functionals of the fundamental measure type shows good agreement.
PACS: 61.20.-p – Structure of liquids / 82.70.Dd – Colloids
© EPLA, 2009
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