# name
Liquid-liquid phase transition for an attractive isotropic potential with wide repulsive range

# metadata.dc.contributor.author[].value
Stanley, H. Eugene (Harry Eugene), 1941-

# metadata.dc.description.abstract[].value
We investigate how the phase diagram of a repulsive soft-core attractive potential, with a liquid-liquid phase transition in addition to the standard gas-liquid phase transition, changes by varying the parameters of the potential. We extend our previous work on short soft-core ranges to the case of large soft-core ranges, by using an integral equation approach in the hypernetted-chain approximation. We show, using a modified van der Waals equation we recently introduced, that if there is a balance between the attractive and repulsive part of the potential this potential has two fluid-fluid critical points well separated in temperature and in density. This implies that for the repulsive (attractive) energy 
U
R
(
U
A
)
 and the repulsive (attractive) range 
w
R
(
w
A
)
 the relation 
U
R
∕
U
A
∝
w
R
∕
w
A
 holds for short soft-core ranges, while 
U
R
∕
U
A
∝
3
w
R
∕
w
A
 holds for large soft-core ranges.

# metadata.dc.source[].value
Articles publicats en revistes (Física de la Matèria Condensada)

# metadata.dc.title[].value
Liquid-liquid phase transition for an attractive isotropic potential with wide repulsive range