Magnetic Field Enhanced Resonant Tunneling in a Silicon Nanowire Single-Electron-Transistor
We report fabrication, measurement and simulation of silicon single-electron-transistors made on silicon-on-insulator wafers. At T∼2 K, these devices showed clear Coulomb blockade structures. An external perpendicular magnetic field was found to enhance the resonant tunneling peak and was used to predict the presence of two laterally coupled quantum dots in the narrow constriction between the source-drain electrodes. The proposed model and measured experimental data were consistently explained using numerical simulations.
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Document Type: Research Article
Publication date: March 1, 2012
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