Cooper-Pair Tunneling in Small Josephson Junction Arrays Under Radio-Frequency Irradiation

被引：0

作者：

Kanyolo, Godwill Mbiti ^{[1
]}

Takeda, Kouichi ^{[1
]}

Mizugaki, Yoshinao ^{[1
]}

Kato, Takeo ^{[2
]}

Shimada, Hiroshi ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Engn Sci, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan

[2] Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, Japan

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2020年 / 201卷 / 3-4期

关键词：

Coulomb blockade; Josephson junction array; Radio-frequency irradiation; COULOMB-BLOCKADE; OSCILLATIONS; CHARGE;

D O I：

10.1007/s10909-020-02486-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of radio-frequency microwaves on the Coulomb blockade characteristics in small Josephson junctions was studied using a one-dimensional array of ten small Al tunnel junctions in the frequency range from 1 to 1000 MHz. Coulomb blockade voltage (Vth) is diminished with increasing microwave power (V-ac), where the Vth-V-ac plots for varied frequencies fall on a single curve. We observed and theoretically analyzed a magnetic field dependent renormalization of the applied microwave power, in addition to a magnetic field independent renormalization effect explained using an effective circuit approach of the array. Due to its high sensitivity to microwave power, the array is well-suited for on-chip detection applications in low-temperature environments.

引用

页码：269 / 284

页数：16

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