期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.026803
关键词
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资金
- Technology Industries of Finland Centennial Foundation
- Academy of Finland
- Emil Aaltonen Foundation
- Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST)
- CREST-JST
- MEXT
- European Community [228464, 217257, 218783]
We show that the effect of a high-temperature environment in current transport through a normal metal-insulator-superconductor tunnel junction can be described by an effective density of states in the superconductor. In the limit of a resistive low-Ohmic environment, this density of states reduces into the well-known Dynes form. Our theoretical result is supported by experiments in engineered environments. We apply our findings to improve the performance of a single-electron turnstile, a potential candidate for a metrological current source.
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