OBSERVATION OF THE BLOCH OSCILLATIONS IN AN ULTRASMALL JOSEPHSON JUNCTION

被引：112

作者：

KUZMIN, LS ^{[1
]}

HAVILAND, DB ^{[1
]}

机构：

[1] MV LOMONOSOV STATE UNIV,DEPT PHYS,CRYOELECTR LAB,MOSCOW 119899,USSR

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.67.2890

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the low-temperature behavior of lead-alloy Josephson tunnel junctions with area S almost-equal-to 0.01-mu-m2, isolated from their electromagnetic environment by high-resistance metallic resistors inserted into the current and voltage leads. Under irradiation with microwaves frequencies, f = 3.5-10 GHz, the dc differential resistance dV/dI, as a function of the dc current I, showed peaks at I = +/- 2ef. This effect, and other observations, arises due to the periodic electrical recharging of the junction by discrete Cooper pairs, and can be explained by the "orthodox" theory of Bloch oscillations.

引用

页码：2890 / 2893

页数：4

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