Interference in Metallic Mesoscopic Systems (CROSBI ID 489692)
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Podaci o odgovornosti
Terrier, Christophe ; Babić, Dinko ; Strunk, Christoph ; Nussbaumer, Thomas ; Schoenenberger, Christian
engleski
Interference in Metallic Mesoscopic Systems
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.
Metallic Mesoscopic Systems; Quantum Interference
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Podaci o prilogu
2002.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the XXIII International Conference on Low Temperature Physics
Hiroshima:
Podaci o skupu
XXIII International Conference on Low Temperature Physics
poster
15.08.2002-21.08.2002
Hiroshima, Japan