Repository logo
 
Publication

Patching up dipoles: can dipolar particles be viewed as patchy colloids?

2011Journal article Restricted access
Simple item page
dc.contributor.authorTavares, Jose
dc.contributor.authorTeixeira, Paulo
dc.date.accessioned2013-02-16T17:03:48Z
dc.date.available2013-02-16T17:03:48Z
dc.date.issued2011
dc.description.abstractWe investigate whether the liquid-vapour phase transition of strongly dipolar fluids can be understood using a model of patchy colloids. These consist of hard spherical particles with three short-ranged attractive sites (patches) on their surfaces. Two of the patches are of type A and one is of type B. Patches A on a particle may bond either to a patch A or to a patch B on another particle. Formation of an AA (AB) bond lowers the energy by epsilon AA (epsilon AB). In the limit [image omitted], this patchy model exhibits condensation driven by AB-bonds (Y-junctions). Y-junctions are also present in low-density, strongly dipolar fluids, and have been conjectured to play a key role in determining their critical behaviour. We map the dipolar Yukawa hard-sphere (DYHS) fluid onto this 2A + 1B patchy model by requiring that the latter reproduce the correct DYHS critical point as a function of the isotropic interaction strength epsilon Y. This is achieved for sensible values of epsilon AB and the bond volumes. Results for the internal energy and the particle coordination number are in qualitative agreement with simulations of DYHSs. Finally, by taking the limit [image omitted], we arrive at a new estimate for the critical point of the dipolar hard-sphere fluid, which agrees with extrapolations from simulation.por
dc.identifier.citationTAVARES, J. M.; TEIXEIRA, P. I. C. - Patching up dipoles: can dipolar particles be viewed as patchy colloids? Molecular Physics. ISSN 0026-8976. Vol. 109, n.º 7-10 (2011) p. 1077-1085.por
dc.identifier.issn0026-8976
dc.identifier.urihttp://hdl.handle.net/10400.21/2226
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherTaylor & Francis LTDpor
dc.relation.ispartofseries;PII 936128499
dc.subjectLiquid-Vapour Transitionpor
dc.subjectSelf-Assemblypor
dc.subjectMagnetic Fluidspor
dc.subjectDirectional Attractive Forcespor
dc.subjectLiquid-Vapor Coexistencepor
dc.subjectHard-Sphere Fluidpor
dc.subjectLow-Densitiespor
dc.subjectPhasepor
dc.subjectThermodynamicspor
dc.subjectSitespor
dc.subjectPolarpor
dc.titlePatching up dipoles: can dipolar particles be viewed as patchy colloids?por
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceOxonpor
oaire.citation.endPage1085por
oaire.citation.issue7-10por
oaire.citation.startPage1077por
oaire.citation.titleMolecular Physicspor
oaire.citation.volume109por
person.familyNameTavares
person.familyNameTeixeira
person.givenNameJose
person.givenNamePaulo
person.identifier.ciencia-id371D-51C6-975C
person.identifier.ciencia-idB31A-0CBD-8AC4
person.identifier.orcid0000-0002-1509-9707
person.identifier.orcid0000-0003-2315-2261
person.identifier.ridA-2891-2009
person.identifier.ridA-2682-2009
person.identifier.scopus-author-id35621140500
person.identifier.scopus-author-id7005895098
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication21fb8ec6-5b23-4df8-ba97-32256495d24d
relation.isAuthorOfPublication35a012c6-2e8b-402f-9b82-065843fce9aa
relation.isAuthorOfPublication.latestForDiscovery21fb8ec6-5b23-4df8-ba97-32256495d24d

Files

Original bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
Patching up dipoles.pdf
Size:
425.61 KB
Format:
Adobe Portable Document Format
Download
No Thumbnail Available
Name:
Patching up dipoles can dipolar particles be viewed as patchy colloids.rep.pdf
Size:
273.8 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Física - Artigos