Mostrar registro simples

dc.contributor.authorBarbosa, Marcia Cristina Bernardespt_BR
dc.contributor.authorFrichembruder, Marcospt_BR
dc.date.accessioned2014-09-23T02:12:34Zpt_BR
dc.date.issued1996pt_BR
dc.identifier.issn1063-651Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/103644pt_BR
dc.description.abstractWe consider a spin model for applications to oil-water-amphiphilic-surfactant mixtures near the region where those phases coexist. We analyze this model assuming that oil and water molecules cannot be treated symmetrically, given that they do exhibit different chemical potentials. Using a mean-field approximation, we find that the modulated phase assumes two possible arrangements, such as sheets (lamellar phase) or rods (hexagonal phase). Due to fluctuations, the lamellar phase is present when the difference between the chemical potential of oil and the chemical potential of water is not too high. Both lamellar and hexagonal phases are present when this difference exceeds a certain value. This value specifies the triple point where the two modulated. phases coexist with the disordered phase. This point is present even for small values of the critical wave vector, indicating that the mean-field Lifshitz point is actually a Buctuation-induced end point.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical Review. E, Statistical Physics, Plasmas, Fluids and Related Interdisciplinary Topics. New York. Vol. 51, no. 5, pt B (May 1995), p. 4690-4697pt_BR
dc.rightsOpen Accessen
dc.subjectFísica da matéria condensadapt_BR
dc.subjectMecânica estatísticapt_BR
dc.subjectTransformações de fasept_BR
dc.subjectRenormalizacaopt_BR
dc.subjectFractaispt_BR
dc.subjectFísico-químicapt_BR
dc.subjectTransformacoes de ordem-desordempt_BR
dc.titleMicroemulsion model with oil-water anisotropypt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000140533pt_BR
dc.type.originEstrangeiropt_BR


Thumbnail
   

Este item está licenciado na Creative Commons License

Mostrar registro simples