Phase diagram of the restricted primitive model: charge-ordering instability

We study the phase behaviour of the restricted primitive model (RPM) using a microscopic approach based on the method of collective variables with a reference system. Starting from the Hamiltonian of the RPM we derive the functional of the grand partition function given in terms of the two collectiv...

Full description

Bibliographic Details
Main Authors:	O.V.Patsahan, I.M.Mryglod
Format:	Article
Language:	English
Published:	Institute for Condensed Matter Physics 2004-01-01
Series:	Condensed Matter Physics
Subjects:	restricted primitive model gas-liquid critical point charge-ordering method of collective variables
Online Access:	http://dx.doi.org/10.5488/CMP.7.4.755

id	doaj-052e17d266724a3a806666d6760abaf3
record_format	Article
spelling	doaj-052e17d266724a3a806666d6760abaf32020-11-25T00:57:24ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2004-01-017475576610.5488/CMP.7.4.755Phase diagram of the restricted primitive model: charge-ordering instabilityO.V.PatsahanI.M.MryglodWe study the phase behaviour of the restricted primitive model (RPM) using a microscopic approach based on the method of collective variables with a reference system. Starting from the Hamiltonian of the RPM we derive the functional of the grand partition function given in terms of the two collective variables: the collective variables ρ<sub>k</sub> and c<sub>k</sub> describing fluctuations of the total number density and charge density, respectively. Within the framework of the Gaussian approximation we found the boundary of stability with respect to fluctuations of the charge density. It is shown that due to the approximated character of the theory the boundary of stability is very sensitive to the particular choice of the long-range part of potential inside the hard core. This point is discussed in more detail.http://dx.doi.org/10.5488/CMP.7.4.755restricted primitive modelgas-liquid critical pointcharge-orderingmethod of collective variables
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	O.V.Patsahan I.M.Mryglod
spellingShingle	O.V.Patsahan I.M.Mryglod Phase diagram of the restricted primitive model: charge-ordering instability Condensed Matter Physics restricted primitive model gas-liquid critical point charge-ordering method of collective variables
author_facet	O.V.Patsahan I.M.Mryglod
author_sort	O.V.Patsahan
title	Phase diagram of the restricted primitive model: charge-ordering instability
title_short	Phase diagram of the restricted primitive model: charge-ordering instability
title_full	Phase diagram of the restricted primitive model: charge-ordering instability
title_fullStr	Phase diagram of the restricted primitive model: charge-ordering instability
title_full_unstemmed	Phase diagram of the restricted primitive model: charge-ordering instability
title_sort	phase diagram of the restricted primitive model: charge-ordering instability
publisher	Institute for Condensed Matter Physics
series	Condensed Matter Physics
issn	1607-324X
publishDate	2004-01-01
description	We study the phase behaviour of the restricted primitive model (RPM) using a microscopic approach based on the method of collective variables with a reference system. Starting from the Hamiltonian of the RPM we derive the functional of the grand partition function given in terms of the two collective variables: the collective variables ρ<sub>k</sub> and c<sub>k</sub> describing fluctuations of the total number density and charge density, respectively. Within the framework of the Gaussian approximation we found the boundary of stability with respect to fluctuations of the charge density. It is shown that due to the approximated character of the theory the boundary of stability is very sensitive to the particular choice of the long-range part of potential inside the hard core. This point is discussed in more detail.
topic	restricted primitive model gas-liquid critical point charge-ordering method of collective variables
url	http://dx.doi.org/10.5488/CMP.7.4.755
work_keys_str_mv	AT ovpatsahan phasediagramoftherestrictedprimitivemodelchargeorderinginstability AT immryglod phasediagramoftherestrictedprimitivemodelchargeorderinginstability
_version_	1725224416168640512

Phase diagram of the restricted primitive model: charge-ordering instability

Similar Items