Spectroscopy of mesoscopic Josephson junction using inelastic Cooper-pair tunneling

被引:2
作者
Lindell, R [1 ]
Penttilä, J [1 ]
Paalanen, M [1 ]
Hakonen, P [1 ]
机构
[1] Helsinki Univ Technol, Low Temp Lab, FIN-02015 Helsinki, Finland
关键词
Josephson junction; inelastic tunneling; spectroscopy;
D O I
10.1016/S1386-9477(02)00935-9
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We have measured the energy levels of a mesoscopic, nearly classical Josephson junction using the method of inelastic Cooper-pair tunneling. The tunneling in an ultrasmall Josephson junction causes transitions in the junction environment and provides a method of doing spectroscopy with a simple DC measurement. A classical Josephson junction can be thought of as an LC-circuit, which quantum mechanically corresponds to the harmonic oscillator. We find that the simple model agrees with the range of E-integral/E-C ratios down to about 35. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:13 / 14
页数:2
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