Current-phase relations in SIsFS junctions in the vicinity of 0-π transition

被引：30

作者：

Bakurskiy, S. V. ^{[1
,2
,3
]}

Filippov, V. I. ^{[4
,5
]}

Ruzhickiy, V. I. ^{[4
]}

Klenov, N. V. ^{[2
,4
,5
]}

Soloviev, I. I. ^{[1
,2
]}

Kupriyanov, M. Yu. ^{[1
,2
,3
]}

Golubov, A. A. ^{[2
,6
,7
]}

机构：

[1] Lomonosov Moscow State Univ 1 2, Skobeltsyn Inst Nucl Phys, Moscow 119234, Russia

[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[3] Natl Univ Sci & Technol MISIS, 4 Leninsky Prosp, Moscow 119049, Russia

[4] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia

[5] All Russian Res Inst Automat, Moscow 127055, Russia

[6] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

[7] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

SUPERCONDUCTIVITY;

D O I：

10.1103/PhysRevB.95.094522

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider the current-phase relation (CPR) in Josephson junctions with complex insulator-superconductor-ferromagnetic interlayers in the vicinity of the 0-pi transition. We find a strong impact of the second harmonic on the CPR of the junctions. It is shown that the critical current can be kept constant in the region of 0-pi transition, while the CPR transforms through multivalued hysteretic states depending on the relative values of tunnel transparency and magnetic thickness. Moreover, the CPR in the transition region has multiple branches with distinct ground states.

引用

页数：11

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