期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 54, 期 2, 页码 666-669出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2004.843075
关键词
capacitance; charge transfer; cryogenic electronics current; quantization; thin-film devices; tunneling; tunnel transistors
capacitance standard based on the definition of capacitance C = Ne/U is realized if a capacitor is charged with a known number N of electrons (e is the elementary charge), and the voltage U across the capacitor is measured [1]. If U is measured by means of a Josephson voltage standard, C is solely determined by quantum numbers and fundamental constants. Presently, Physikalisch-Technische Bundesanstalt (PTB) is setting up this experiment using a special type of single-electron pump, the so-called r-pump [2], for transferring electrons one by one onto a cryogenic vacuum capacitor with the decadic capacitance C = 1 pF. We report on the progress in the setup with emphasis on the characterization of the single-electron tunneling elements. We describe the modifications of the single-electron circuit that are necessary to implement the capacitor charging experiment by using a four- or five-junction r-pump.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据