COMBINED SINGLE-ELECTRON AND COHERENT-COOPER-PAIR TUNNELING IN VOLTAGE-BIASED JOSEPHSON-JUNCTIONS

被引：78

作者：

VANDENBRINK, AM

SCHON, G

GEERLIGS, LJ

机构：

[1] Department of Applied Physics, Delft University of Technology, 2628 CJ Delft

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.67.3030

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Small-capacitance tunnel junctions show single-electron effects and, in the superconducting state, the coherent tunneling of Cooper pairs. We study these effects in a system of two voltage-biased Josephson junctions in series. Novel features show up in the I-V characteristics, in particular, pronounced structures at subgap voltages. These are due to combined quasiparticle and pair tunneling and to higher-order Cooper-pair tunneling processes. Several of them have been observed in experiments.

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页码：3030 / 3033

页数：4

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