dc.creator | Domínguez Álvarez, Álvaro | es |
dc.creator | Oettel, Martin | es |
dc.creator | Dietrich, Siegfried | es |
dc.date.accessioned | 2020-04-27T10:30:04Z | |
dc.date.available | 2020-04-27T10:30:04Z | |
dc.date.issued | 2007-11 | |
dc.identifier.citation | Domínguez Álvarez, Á., Oettel, M. y Dietrich, S. (2007). Theory of capillary-induced interactions beyond the superposition approximation. The Journal of Chemical Physics, 127 (20), 10.1063. | |
dc.identifier.issn | 0021-9606 | es |
dc.identifier.issn | 1089-7690 | es |
dc.identifier.uri | https://hdl.handle.net/11441/95818 | |
dc.description.abstract | Within a general theoretical framework, we study the effective, deformation-induced interaction
between two colloidal particles trapped at a fluid interface in the regime of small deformations. In
many studies, this interaction has been computed with the ansatz that the actual interface
configuration for the pair is given by the linear superposition of the interface deformations around
the single particles. Here, we assess the validity of this approach and compute the leading term of
the effective interaction for a large interparticle separation beyond this so-called superposition
approximation. As an application, we consider the experimentally relevant case of interface
deformations owing to the electrostatic field emanating from charged colloidal particles. In
mechanical isolation, i.e., if the net force acting on the total system consisting of the particles plus
the interface vanishes, the superposition approximation is actually invalid. The effective capillary
interaction is governed by contributions beyond this approximation and turns out to be attractive.
For sufficiently small surface charges on the colloids, such that linearization is strictly valid, and at
asymptotically large separations, the effective interaction does not overcome the direct electrostatic
repulsion between the colloidal particles. | es |
dc.description.sponsorship | German Science Foundation. Collaborative Research Centre “Colloids in External Fields” SFB-TR6 | es |
dc.format | application/pdf | es |
dc.format.extent | 18 p. | es |
dc.language.iso | eng | es |
dc.publisher | AIP Publishing | es |
dc.relation.ispartof | The Journal of Chemical Physics, 127 (20), 10.1063. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Theory of capillary-induced interactions beyond the superposition approximation | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear | es |
dc.relation.projectID | SFB-TR6 | es |
dc.relation.publisherversion | https://aip.scitation.org/doi/10.1063/1.2781420 | es |
dc.identifier.doi | 10.1063/1.2781420 | es |
dc.journaltitle | The Journal of Chemical Physics | es |
dc.publication.volumen | 127 | es |
dc.publication.issue | 20 | es |
dc.publication.initialPage | 10.1063 | es |
dc.identifier.sisius | 6698704 | es |
dc.contributor.funder | German Science Foundation. Collaborative Research Centre. Germany | es |