Dynamics of phononic dissipation at the atomic scale: Dependence on internal degrees of freedom

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buir.contributor.authorÇıracı, Salim
buir.contributor.orcidÇıracı, Salim|0000-0001-8023-9860
dc.citation.epage205430-10en_US
dc.citation.issueNumber20en_US
dc.citation.spage205430-1en_US
dc.citation.volumeNumber76en_US
dc.contributor.authorSevinçli, H.en_US
dc.contributor.authorMukhopadhyay, S.en_US
dc.contributor.authorSenger, R. T.en_US
dc.contributor.authorÇıracı, Salimen_US
dc.date.accessioned2016-02-08T10:12:13Z
dc.date.available2016-02-08T10:12:13Z
dc.date.issued2007en_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractDynamics of dissipation local vibrations to the surrounding substrate is a key issue in friction between sliding surfaces as well as in boundary lubrication. We consider a model system consisting of an excited nano-particle which is weakly coupled with a substrate. Using three different methods, we solve the dynamics of energy dissipation for different types of coupling between the nanoparticle and the substrate, where different types of dimensionality and phonon densities of states were also considered for the substrate. In this paper, we present a microscopic analysis of transient properties of energy dissipation via phonon discharge toward the substrate. Finally, important conclusions of our theoretical analysis are verified by a realistic study, where the phonon modes and interaction parameters involved in the energy dissipation from an excited benzene molecule to the graphene are calculated by using first-principles methods. The methods used are applicable also to dissipative processes in the contexts of infrared Raman spectroscopy and atomic force microscopy of molecules on surfaces.en_US
dc.identifier.doi10.1103/PhysRevB.76.205430en_US
dc.identifier.issn1098-0121
dc.identifier.urihttp://hdl.handle.net/11693/23328
dc.language.isoEnglishen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.76.205430en_US
dc.source.titlePhysical Review B - Condensed Matter and Materials Physicsen_US
dc.titleDynamics of phononic dissipation at the atomic scale: Dependence on internal degrees of freedomen_US
dc.typeArticleen_US
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