Equidistance of branch structure in capacitively coupled Josephson junctions model with diffusion current

被引：43

作者：

Shukrinov, Yu. M. ^{[1
]}

Mahfouzi, F.

Seidel, P.

机构：

[1] Joint Inst Nucl Res, BLTP, Dubna 141980, Moscow Region, Russia

[2] Inst Tech Phys, Dushanbe 734063, Tajikistan

[3] Inst Adv Studies Basic Sci, Zanjin, Iran

[4] Univ Jena, Inst Festkorperphys, D-07743 Jena, Germany

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2006年 / 449卷 / 01期

关键词：

layered superconductors; intrinsic Josephson effect; branch structure; current-voltage characteristics; capacitive coupling; diffusion current; nonequilibrium superconductivity;

D O I：

10.1016/j.physc.2006.06.054

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Branch structure in current-voltage characteristics of intrinsic Josephson junctions of HTSC is studied in the framework of two models: capacitively coupled Josephson junctions (CCJJ) model and CCJJ model with diffusion current (CCJJ + DC). We investigate the coupling dependence of the branch's slopes and demonstrate that the equidistance of the branch structure in CCJJ model is broken at enough small values of coupling parameter (at alpha << 1). We show that the inclusion of diffusion in the tunneling current through intrinsic Josephson junctions might restore the equidistance of the branch structure. Change of the current-voltage characteristics in CCJJ + DC model under variation of the coupling and McCumber parameters and effect of boundary conditions on the branch structure is analyzed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：62 / 66

页数：5

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