COULOMB BLOCKADE AND NONPERTURBATIVE GROUND-STATE PROPERTIES OF ULTRASMALL TUNNEL-JUNCTIONS

被引：100

作者：

PANYUKOV, SV

ZAIKIN, AD

机构：

[1] I. E. Tamm Department of Theoretical Physics, P. N. Lebedev Physics Institute, U.S.S.R. Academy of Sciences, Moscow 117924

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.67.3168

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a nonperturbative calculation of the ground-state energy of a normal tunnel junction. The junction with a large conductance shows Coulomb blockade of tunneling provided the external charge Q(x) is less than e/4. For Q(x) > e/4, the band is flat and the junction behaves like an Ohmic resistor. We predict a phase transition between insulating and conducting behavior of the junction controlled by an external Ohmic resistance. We plot the corresponding zero-temperature phase diagram and calculate the junction effective resistance.

引用

页码：3168 / 3171

页数：4

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