Detection of Vibration-Mode Scattering in Electronic Shot Noise
AVRILLER, Rémi
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Donostia International Physics Center DIPC
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]
See more >
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Donostia International Physics Center DIPC
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]
AVRILLER, Rémi
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Donostia International Physics Center DIPC
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]
< Reduce
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Donostia International Physics Center DIPC
Departamento de Física Teórica de la Materia Condensada [Madrid] [DFTMC]
Language
en
Article de revue
This item was published in
Physical Review Letters. 2012-04-06, vol. 108, n° 14, p. 146602 (1-4)
American Physical Society
English Abstract
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 ...Read more >
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.Read less <
English Keywords
Noise processes and phenomena
Nanoscale contacts
Landau levels
Molecular electronic devices
Origin
Hal imported