Phase sticking in one-dimensional Josephson junction chains

被引：13

作者：

Ergul, Adem ^{[1
]}

Schaeffer, David ^{[1
]}

Lindblom, Magnus ^{[1
]}

Haviland, David B. ^{[1
]}

Lidmar, Jack ^{[1
]}

Johansson, Jan ^{[2
]}

机构：

[1] Royal Inst Technol, SE-10691 Stockholm, Sweden

[2] Univ Agder, Dept Nat Sci, Kristiansand, Norway

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 10期

关键词：

COULOMB-BLOCKADE; TRANSITION; SLIP;

D O I：

10.1103/PhysRevB.88.104501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied current-voltage characteristics of long one-dimensional Josephson junction chains with Josephson energy much larger than charging energy, E-J >> E-C. In this regime, typical I-V curves of the samples consist of a supercurrent-like branch at low-bias voltages followed by a voltage-independent chain current branch, I-chain at high bias. Our experiments showed that I-chain is not only voltage-independent but it is also practically temperature-independent up to T = 0.7T(C). We have successfully model the transport properties in these chains using a capacitively shunted junction model with nonlinear damping.

引用

页数：6

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