Observation of strong Coulomb blockade in resistively isolated tunnel junctions

被引：21

作者：

Zheng, W ^{[1
]}

Friedman, JR ^{[1
]}

Averin, DV ^{[1
]}

Han, SY ^{[1
]}

Lukens, JE ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

SOLID STATE COMMUNICATIONS | 1998年 / 108卷 / 11期

关键词：

Coulomb blockade; Luttinger liquids; tunneling; nanostructures;

D O I：

10.1016/S0038-1098(98)00439-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report measurements of the Coulomb-blockade current in resistively isolated(R-Isol 2 much greater than h/e(2)) tunnel junctions for the temperature range 60 mK < T < 230 mK where the charging energy E-c is much greater than the thermal energy. A zero-bias resistance Ro of up to 10(4) R-T (the tunnel resistance of the bare junction) is obtained. For eV much less than E-c, the I-V curves for a given R-Isol scale as a function of V/T, with I ex: V-alpha(RIsol) over a range of V. The data agree well with numerical calculations of the tunneling rate that include environmental effects. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：839 / 843

页数：5