| Issue |
Europhys. Lett.
Volume 59, Number 3, August 2002
|
|
|---|---|---|
| Page(s) | 437 - 443 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2002-00214-6 | |
| Published online | 01 September 2002 | |
The amplitude of non-equilibrium quantum interference in metallic mesoscopic systems
Institute of Physics, University of Basel - Klingelbergstrasse 82
CH-4056 Basel, Switzerland
Received:
18
July
2001
Accepted:
2
May
2002
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
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 agreement 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.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 72.10.-d – Theory of electronic transport; scattering mechanisms
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.