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hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorLY, Aboubakry
hal.structure.identifierMax-Planck-Institut für Intelligente Systeme
hal.structure.identifierInstitute fürTheoretische Physik IV
dc.contributor.authorMAJEE, Arghya
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorWÜRGER, Alois
dc.date.issued2018
dc.identifier.issn1367-2630
dc.description.abstractEnWe theoretically study the Seebeck effect in the vicinity of a heated metal nanostructure, such as the cap of an active Janus colloid in an electrolyte, or gold-coated interfaces in optofluidic devices. The thermocharge accumulated at the surface varies with the local temperature, thus modulating the diffuse part of the electric double layer. On a conducting surface with non-uniform temperature, the isopotential condition imposes a significant polarization charge within the metal. Surprisingly, this does not affect the slip velocity, which takes the same value on insulating and conducting surfaces. Our results for specific-ion effects agree qualitatively with recent observations for Janus colloids in different electrolyte solutions. Comparing the thermal, hydrodynamic, and ion diffusion time scales, we expect a rich transient behavior at the onset of thermally powered swimming, extending to microseconds after switching on the heating.
dc.language.isoen
dc.publisherInstitute of Physics: Open Access Journals
dc.title.enNanoscale Seebeck effect at hot metal nanostructures
dc.typeArticle de revue
dc.identifier.doi10.1088/1367-2630/aaa266
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.journalNew Journal of Physics
bordeaux.page025001
bordeaux.volume20
bordeaux.peerReviewedoui
hal.identifierhal-01699638
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01699638v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Journal%20of%20Physics&rft.date=2018&rft.volume=20&rft.spage=025001&rft.epage=025001&rft.eissn=1367-2630&rft.issn=1367-2630&rft.au=LY,%20Aboubakry&MAJEE,%20Arghya&W%C3%9CRGER,%20Alois&rft.genre=article


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