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Transient dynamics and waiting time distribution of molecular junctions in the polaronic regime

hal.structure.identifierDepartamento de Fisica de la Materia Condensada and Instituto Nicolas Cabrera
dc.contributor.authorSOUTO, R. Seoane
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorAVRILLER, Rémi
hal.structure.identifierDepartamento de Fisica de la Materia Condensada and Instituto Nicolas Cabrera
dc.contributor.authorMONREAL, R. C.
hal.structure.identifierDepartamento de Fisica de la Materia Condensada and Instituto Nicolas Cabrera
dc.contributor.authorMARTIN-RODERO, A.
hal.structure.identifierDepartamento de Fisica de la Materia Condensada and Instituto Nicolas Cabrera
dc.contributor.authorYEYATI, A. Levy
dc.date.created2015-07-09
dc.date.issued2015-09-25
dc.identifier.issn1098-0121
dc.description.abstractEnWe develop a theoretical approach to study the transient dynamics and the time-dependent statistics for the Anderson-Holstein model in the regime of strong electron-phonon coupling. For this purpose we adapt a recently introduced diagrammatic approach to the time domain. The generating function for the time-dependent charge transfer probabilities is evaluated numerically by discretizing the Keldysh contour. The method allows us to analyze the system evolution to the steady state after a sudden connection of the dot to the leads, starting from different initial conditions. Simple analytical results are obtained in the regime of very short times. We study in particular the apparent bistable behavior occurring for strong electron-phonon coupling, small bias voltages and a detuned dot level. The results obtained are in remarkable good agreement with numerically exact results obtained by Quantum Monte Carlo methods. We analyze the waiting time distribution and charge transfer probabilities, showing that only a single electron transfer is responsible for the rich structure found in the short times regime. A universal scaling (independent of the model parameters) is found for the relative amplitude of the higher order current cumulants in the short times regime, starting from an initially empty dot. We finally analyze the convergence to the steady state of the differential conductance and of the differential Fano factor at the inelastic threshold, which exhibits a peculiar oscillatory behavior.
dc.description.sponsorshipPrédiction par calcul numérique intensif du potentiel à circuit ouvert au sein de cellules photovoltaïques organiques. - ANR-12-MONU-0014
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights.urihttp://creativecommons.org/licenses/by-sa/
dc.subject.enNoise processes and phenomena
dc.subject.enElectronic transport in nanoscale materials and structures
dc.subject.enElectronic transport in mesoscopic systems
dc.subject.enMolecular electronic devices
dc.title.enTransient dynamics and waiting time distribution of molecular junctions in the polaronic regime
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.92.125435
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]
dc.identifier.arxiv1507.02561
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page125435 (1-10)
bordeaux.volume92
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-01216379
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01216379v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2015-09-25&rft.volume=92&rft.issue=12&rft.spage=125435%20(1-10)&rft.epage=125435%20(1-10)&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=SOUTO,%20R.%20Seoane&AVRILLER,%20R%C3%A9mi&MONREAL,%20R.%20C.&MARTIN-RODERO,%20A.&YEYATI,%20A.%20Levy&rft.genre=article


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