Enhanced Thermoelectric Power in Graphene: Violation of the Mott Relation by Inelastic Scattering

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dc.citation.articleNumber136802
dc.citation.issueNumber13
dc.citation.journalTitlePhysical Review Letters
dc.citation.volumeNumber116
dc.contributor.authorGhahari, Fereshte
dc.contributor.authorXie, Hong-Yi
dc.contributor.authorTaniguchi, Takashi
dc.contributor.authorWatanabe, Kenji
dc.contributor.authorFoster, Matthew S.
dc.contributor.authorKim, Philip
dc.contributor.orgRice Center for Quantum Materials
dc.date.accessioned2017-05-03T18:24:04Z
dc.date.available2017-05-03T18:24:04Z
dc.date.issued2016
dc.description.abstractWe report the enhancement of the thermoelectric power (TEP) in graphene with extremely low disorder. At high temperature we observe that the TEP is substantially larger than the prediction of the Mott relation, approaching to the hydrodynamic limit due to strong inelastic scattering among the charge carriers. However, closer to room temperature the inelastic carrierﾖoptical-phonon scattering becomes more significant and limits the TEP below the hydrodynamic prediction. We support our observation by employing a Boltzmann theory incorporating disorder, electron interactions, and optical phonons.
dc.identifier.citationGhahari, Fereshte, Xie, Hong-Yi, Taniguchi, Takashi, et al.. "Enhanced Thermoelectric Power in Graphene: Violation of the Mott Relation by Inelastic Scattering." <i>Physical Review Letters,</i> 116, no. 13 (2016) American Physical Society: https://doi.org/10.1103/PhysRevLett.116.136802.
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.116.136802
dc.identifier.urihttps://hdl.handle.net/1911/94131
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleEnhanced Thermoelectric Power in Graphene: Violation of the Mott Relation by Inelastic Scattering
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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