THERMAL ENHANCEMENT OF COTUNNELING IN ULTRA-SMALL TUNNEL-JUNCTIONS

被引：41

作者：

EILES, TM

ZIMMERLI, G

JENSEN, HD

MARTINIS, JM

机构：

[1] UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309

[2] DANISH INST FUNDAMENTAL METROL,DK-2800 LYNGBY,DENMARK

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.69.148

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the cotunneling current below the Coulomb blockade threshold in a circuit of two ultra-small metallic tunnel junctions. The thermal enhancement of cotunneling, as well as the island-charge dependence, is in excellent agreement with theory. Circuit parameters were measured enabling theoretical and experimental values for the cotunneling current to be compared without adjustable parameters. This comparison yielded agreement within the 15% uncertainty of the experiment. Data showing the cotunneling current near the threshold voltage are also presented.

引用

页码：148 / 151

页数：4

共 16 条

[1]

AVERIN D, COMMUNICATION

[2] MACROSCOPIC QUANTUM TUNNELING OF THE ELECTRIC CHARGE IN SMALL TUNNEL-JUNCTIONS [J].