SALR potential: Difference between revisions

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The '''SALR'''  ( short-range attractive - long-range repulsive) potential. This potential has a variety of functional forms.
==HCDY==
[[Image:SALR.png|thumb|right|Plot of a region of the HCDY potential for the parameters <math>\epsilon_r=0.5</math>, <math>\kappa_r=0.5</math>, <math>\epsilon_a=2</math>, <math>\kappa_a=1</math>, as used in the work of Sweatman ''et. al.'' <ref>[https://doi.org/10.1063/1.4869109 Martin B. Sweatman, Rui Fartaria, and Leo Lue "Cluster formation in fluids with competing short-range and long-range interactions", nal of Chemical Physics '''140''' 124508 (2014)]</ref>]]
[[Image:SALR.png|thumb|right|Plot of a region of the HCDY potential for the parameters <math>\epsilon_r=0.5</math>, <math>\kappa_r=0.5</math>, <math>\epsilon_a=2</math>, <math>\kappa_a=1</math>, as used in the work of Sweatman ''et. al.'' <ref>[https://doi.org/10.1063/1.4869109 Martin B. Sweatman, Rui Fartaria, and Leo Lue "Cluster formation in fluids with competing short-range and long-range interactions", nal of Chemical Physics '''140''' 124508 (2014)]</ref>]]
The '''SALR'''  ( short-range attractive - long-range repulsive) potential is often expressed as a hard core of diameter <math> \sigma </math> , along with combination of two [[Hard core Yukawa potential | Yukawa potentials]]:
 
The SALR potential is often expressed as a hard core of diameter <math> \sigma </math> , along with combination of two [[Hard core Yukawa potential | Yukawa potentials]]:


:<math>
:<math>
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==References==
==References==
<references/>
<references/>
 
;Related reading
*[http://dx.doi.org/10.1103/PhysRevE.76.031501 Andrew J. Archer and Nigel B. Wilding "Phase behavior of a fluid with competing attractive and repulsive interactions", Physical Review E '''76''' 031501 (2007)]
[[Category: Models]]
[[Category: Models]]

Revision as of 16:43, 14 March 2018

The SALR ( short-range attractive - long-range repulsive) potential. This potential has a variety of functional forms.

HCDY

Plot of a region of the HCDY potential for the parameters , , , , as used in the work of Sweatman et. al. [1]

The SALR potential is often expressed as a hard core of diameter , along with combination of two Yukawa potentials:


where is the intermolecular pair potential, is the distance between site 1 and site 2. The control is the energy of the repulsive and attractive parts, whilst the controls the interaction range.

This potential also goes by the names of the hard-sphere plus two Yukawa (H2Y) or hard-core double-Yukawa (HCDY) potential [2][3][4].

References

Related reading