Current Correlation in Single-Electron Current Mirror Electromagnetically Dual to Josephson Voltage Mirror
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概要
- 論文の詳細を見る
The electromagnetic duality between single-electron devices and Josephson devices sometimes helps us to develop new electron devices. In this article, a single-electron turnstile is discussed as a dual device to a dc superconducting quantum interference device (dc-SQUID). From the viewpoint of the device characteristics, a single-electron turnstile has better duality to a dc-SQUID than a single-electron transistor. Next, a current mirror based on single-electron turnstiles is introduced as a dual circuit corresponding to a Josephson voltage mirror. A test circuit of a current mirror was fabricated using electron beam lithography and aluminum shadow evaporation. Although the precise current mirror operation was not obtained, we observed two currents approaching each other. Simulation based on the Monte Carlo method succeeded in reproducing the experimental results. Numerical results indicate that insufficient capacitive coupling, nonnegligible parasitic capacitances, and short array length deteriorate the current mirror operation.
- 2007-09-30
著者
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Mizugaki Yoshinao
Department Of Electronic Engineering The University Of Electro-communications
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Shimada Hiroshi
Course of Coherent Optical Science, and Department of Applied Physics and Chemistry, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
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Itoh Masafumi
Department of Electronic Engineering, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
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