Effect of connecting wires on the decoherence due to electron-electron interaction in a metallic ring

Abstract

We consider the weak localization in a ring connected to reservoirs through leads of finite length and submitted to a magnetic field. The effect of decoherence due to electron-electron interaction on the harmonics of AAS oscillations is studied, and more specifically the effect of the leads. Two results are obtained for short and long leads regimes. The scale at which the crossover occurs is discussed. The long leads regime is shown to be more realistic experimentally.

arXiv commentLaTeX, 4 pages, 4 eps figures

References in corpus (6)

• Inelastic Scattering Time for Conductance Fluctuations
• Interaction-induced dephasing of Aharonov-Bohm oscillations
• Direct measurement of the phase coherence length in a GaAs/GaAlAs square network
• Dephasing due to electron-electron interaction in a diffusive ring
• Weak localization in multiterminal networks of diffusive wires
• Quantum oscillations in mesoscopic rings and anomalous diffusion

Cited by in corpus (4)

• Geometrical dependence of decoherence by electronic interactions in a GaAs/GaAlAs square network
• Quantum oscillations and decoherence due to electron-electron interaction in metallic networks and hollow cylinders
• Ergodic vs diffusive decoherence in mesoscopic devices
• Four-terminal resistances in mesoscopic networks of metallic wires: Weak localisation and correlations