Interplay between Josephson and Aharonov-Bohm effects in Andreev interferometers

被引：8

作者：

Dolgirev, Pavel E. ^{[1
]}

Kalenkov, Mikhail S. ^{[2
,3
]}

Zaikin, Andrei D. ^{[4
,5
]}

机构：

[1] Skolkovo Inst Sci & Technol, Skolkovo Innovat Ctr, 3 Nobel St, Moscow 143026, Russia

[2] PN Lebedev Phys Inst, IE Tamm Dept Theoret Phys, Moscow 119991, Russia

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

[4] KIT, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[5] Natl Res Univ Higher Sch Econ, Moscow 101000, Russia

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

关键词：

METAL; SUPERCONDUCTOR; SUPERCURRENT; CONDUCTANCE;

D O I：

10.1038/s41598-018-37653-w

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Proximity induced quantum coherence of electrons in multi-terminal voltage-driven hybrid normal-superconducting nanostructures may result in a non-trivial interplay between topology-dependent Josephson and Aharonov-Bohm effects. We elucidate a trade-off between stimulation of the voltage-dependent Josephson current due to non-equilibrium effects and quantum dephasing of quasiparticles causing reduction of both Josephson and Aharonov-Bohm currents. We also predict phase-shifted quantum coherent oscillations of the induced electrostatic potential as a function of the externally applied magnetic flux. Our results may be employed for engineering superconducting nanocircuits with controlled quantum properties.

引用

页数：9

共 50 条

[1] Interplay between Josephson and Aharonov-Bohm effects in Andreev interferometers
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Mikhail S. Kalenkov
Andrei D. Zaikin
[J]. Scientific Reports, 9
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