منابع مشابه
Mesoscopic charge relaxation.
We consider charge relaxation in the mesoscopic equivalent of an RC circuit. For a single-channel, spin-polarized contact, self-consistent scattering theory predicts a universal charge relaxation resistance equal to half a resistance quantum independent of the transmission properties of the contact. This prediction is in good agreement with recent experimental results. We use a tunneling Hamilt...
متن کاملEffect of many-body correlations on mesoscopic charge relaxation
Minchul Lee,1 Rosa López,2,3 Mahn-Soo Choi,4 Thibaut Jonckheere,5 and Thierry Martin5,6 1Department of Applied Physics, College of Applied Science, Kyung Hee University, Yongin 446-701, Korea 2Departament de Fı́sica, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain 3Institut de Fı́sica Interdisciplinar i de Sistemes Complexos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain 4D...
متن کاملCharge Relaxation in the Presence of Shot Noise in Coulomb Coupled Mesoscopic Systems
In the presence of shot noise the charge on a mesoscopic conductor fluctuates. We are interested in the charge fluctuations which arise if the conductor is in the proximity of a gate to which it is coupled by long range Coulomb forces only. Specifically we consider a gate coupled to the edge of a Hall bar subject to a quantizing magnetic field which contains a quantum point contact. The gate is...
متن کاملLagrangian Relaxation Method for the Step fixed-charge Transportation Problem
In this paper, a step fixed charge transportation problem is developed where the products are sent from the sources to the destinations in existence of both unit and step fixed-charges. The proposed model determines the amount of products in the existing routes with the aim of minimizing the total cost (sum of unit and step fixed-charges) to satisfy the demand of each customer. As the problem i...
متن کاملMesoscopic relaxation in homoepitaxial metal growth.
We demonstrate that a size-dependent mesoscopic mismatch exists in homoepitaxy, which has a strong impact on the morphology of the islands and the substrate. Atomic scale calculations for double layer Cu islands on Cu(111) reveal that mesoscopic strain relaxations in both islands and the substrate strongly influence the shape of islands and can effect the details of atomic motion near the island.
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.97.206804