Phonon-assisted current noise in molecular junctions

Haupt, Federica; Novotný, Tomá; Belzig, Wolfgang

Phonon-assisted current noise in molecular junctions

Dateien

Haupt_107724.pdfGröße: 230.26 KBDownloads: 286

Datum

2009

Autor:innen

Haupt, Federica

Novotný, Tomá

Belzig, Wolfgang

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. 2009, 103(13). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.103.136601

Zusammenfassung

We investigate the effects of phonon scattering on the electronic current noise through nanojunctions using the non-equilibrium Green's functions formalism extended to include the counting field. In the case of weak electron-phonon coupling and a single broad electronic level we derive an analytic expression for the current noise at arbitrary temperature and identify physically distinct contributions based on their voltage dependence. We apply our theory to the experimentally relevant case of a deuterium molecule placed in a break-junction and predict a significant inelastic contribution to the current noise.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

HAUPT, Federica, Tomá NOVOTNÝ, Wolfgang BELZIG, 2009. Phonon-assisted current noise in molecular junctions. In: Physical Review Letters. 2009, 103(13). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.103.136601

BibTex

@article{Haupt2009Phono-9500,
  year={2009},
  doi={10.1103/PhysRevLett.103.136601},
  title={Phonon-assisted current noise in molecular junctions},
  number={13},
  volume={103},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Haupt, Federica and Novotný, Tomá and Belzig, Wolfgang}
}

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Universitätsbibliographie

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