CHARGE FLUCTUATIONS IN SYSTEMS OF MESOSCOPIC TUNNEL-JUNCTIONS

被引：27

作者：

GOLUBEV, DS

ZAIKIN, AD

机构：

[1] I.E. Tamm Department of Theoretical Physics, P.N. Lebedev Physics Institute Leninsky Prospekt 53, Moscow

来源：

PHYSICS LETTERS A | 1992年 / 169卷 / 06期

关键词：

D O I：

10.1016/0375-9601(92)90830-F

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the effect of an external circuit on electron cotunneling and show that the cotunneling rate can be strongly suppressed by the external impedance. For a system with N normal tunnel junctions the cotunneling contribution to the I-V curve is found to be I is-proportional-to V(x)2N-1+1/2a(s), a(s) is the dimensionless conductance of the external leads. We also evaluate the I-V characteristic of a multijunction system beyond the perturbation theory in the junction conductance. The offset on this characteristic essentially depends on the form of the external impedance.

引用

页码：475 / 482

页数：8

共 25 条

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