KUMAR, Manohar; AVRILLER, Rémi; YEYATI, Alfredo Levy; VAN RUITENBEEK, Jan M.

doi:10.1103/PhysRevLett.108.146602

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KUMAR, Manohar
Kamerlingh Omnes Laboratorium

AVRILLER, Rémi
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Donostia International Physics Center DIPC
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]

YEYATI, Alfredo Levy
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]

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Physical Review Letters. 2012-04-06, vol. 108, n° 14, p. 146602 (1-4)

American Physical Society

Resumen en inglés

We present shot noise measurements on Au nanowires showing very pronounced vibration-mode features. In accordance to recent theoretical predictions the sign of the inelastic signal, i.e., the signal due to vibration excitations, depends on the transmission probability becoming negative below a certain transmission value. We argue that the negative contribution to noise arises from coherent two-electron processes mediated by electron-phonon scattering and the Pauli exclusion principle. These signals can provide unique information on the local phonon population and lattice temperature of the nanoscale system.< Leer menos

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Noise processes and phenomena

Nanoscale contacts

Landau levels

Molecular electronic devices

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Detection of Vibration-Mode Scattering in Electronic Shot Noise

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