期刊
APPLIED PHYSICS LETTERS
卷 84, 期 8, 页码 1323-1325出版社
AMER INST PHYSICS
DOI: 10.1063/1.1650036
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We observe a quantized current due to single-electron transfer in a small charge-coupled device, which consists of a narrow Si-wire channel with fine gates; the gate is used to form a tunable barrier potential. By modulating two barrier potentials under the fine gates with phase-shifted pulse voltages, quantized numbers of electrons are injected into and extracted from the charge island sandwiched by the two barriers. Current plateaus due to single-electron transfer are clearly observed at 20 K with frequencies up to 100 MHz and a current level of 16 pA. (C) 2004 American Institute of Physics.
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