Volume 99, Number 4, August 2012
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||31 August 2012|
Shot noise of the hybrid double-quantum-dot Aharonov-Bohm interferometer coupled to normal and superconductive terminals
1 Key Laboratory of Cluster Science of Ministry of Education, and School of Physics, Beijing Institute of Technology Beijing 100081, China
2 Department of Physics, The University of Hong Kong - Pokfulam Road, Hong Kong, China
Received: 7 February 2012
Accepted: 23 July 2012
The shot noise of double-quantum-dot interferometer connected to normal metal and superconductor is investigated by employing the nonequilibrium Green's function approach. The gate voltages control the Aharonov-Bohm oscillation structure of shot noise, and the oscillation peaks can be converted to valleys by changing the gate voltages. The Andreev-reflection-generated shot noise is suppressed resulting from the interference effect and bias voltages. The asymmetric Fano factor with respect to the gate voltages exhibits the peak-valley resonant structure.
PACS: 85.35.-p – Nanoelectronic devices / 73.23.-b – Electronic transport in mesoscopic systems / 73.21.La – Quantum dots
© EPLA, 2012
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.