Naslov
The Amplitude of Non-Equilibrium Quantum Interference in Metallic Mesoscopic Systems
(Interference in Metallic Mesoscopic Systems)

Autori
Terrier, Christophe ; Babić, Dinko ; Strunk, Christoph ; Nussbaumer, Thomas ; Schoenenberger, Christian

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the XXIII International Conference on Low Temperature Physics / - Hiroshima, 2002

Skup
XXIII International Conference on Low Temperature Physics

Mjesto i datum
Hiroshima, Japan, 15.08.2002. - 21.08.2002

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Metallic Mesoscopic Systems; Quantum Interference

Sažetak
We study the influence of a DC bias voltage V on quantum interference corrections to the measured differential conductance in metallic mesoscopic wires and rings. The amplitude of both universal conductance fluctuations (UCF) and Aharonov-Bohm effect (ABE) is enhanced several times for voltages larger than the Thouless energy. The enhancement persists even in the presence of inelastic electron-electron scattering up to V//sim 1, mV. For larger voltages electron-phonon collisions lead to the amplitude decaying as a power law for the UCF and exponentially for the ABE. We obtain good argeement of the experimental data with a model which takes into account the decrease of the electron phase-coherence length due to electron-electron and electron-phonon scattering.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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