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We study a diffusive superconductor-normal metal-superconductor junction in an environment with intrinsic incoherent fluctuations which couple to the junction through an electromagnetic field. When the temperature of the junction differs…

超导电性 · 物理学 2013-04-04 Juha Voutilainen , Pauli Virtanen , Tero T. Heikkilä

We consider a Josephson junction hosting a Kramers pair of helical edge states of a quantum spin Hall bar in contact with a normal-metal probe. In this hybrid system, the orbital phase induced by a small magnetic field threading the…

介观与纳米尺度物理 · 物理学 2020-06-04 Gianmichele Blasi , Fabio Taddei , Liliana Arrachea , Matteo Carrega , Alessandro Braggio

In this paper, we demonstrate that the hybrid normal-superconducting-normal (NSN) structure has potential for a multifunctional thermal device which could serve for heat flux control and cooling of microstructures. By adopting the…

介观与纳米尺度物理 · 物理学 2019-03-25 N. S. Kirsanov , Z. B. Tan , D. S. Golubev , P. J. Hakonen , G. B. Lesovik

Critical temperature reduction $\Delta T_c$ is considered for a thin film of a layered superconductor (S) with a rough surface covered by a thick layer of a normal metal (N). The roughness of the SN interface increases the penetration of…

超导电性 · 物理学 2009-10-30 R. G. Mints , I. B. Snapiro

Using a 2D model of capacitively coupled Josephson junction arrays (created by a network of twin boundary dislocations with strain fields acting as an insulating barrier between hole-rich domains in underdoped crystals), we study the…

超导电性 · 物理学 2007-09-26 Sergei Sergeenkov

We discuss the known construction of two interacting superconducting circuits, based on Josephson junctions, that can be precisely engineered and easily controlled. In particular, we use the parametric excitation of two circuits, realized…

量子物理 · 物理学 2016-05-26 Evgenii Glushkov , Anastasiia Glushkova , V. I. Man'ko

We studied a mesoscopic cross-like normal metal structure connected to two superconducting (S) and two normal (N) reservoirs. We observed the Josephson effect under unusual conditions when there is no current through one of the two S/N…

超导电性 · 物理学 2009-10-31 R. Shaikhaidarov , A. F. Volkov , H. Takayanagi , V. T. Petrashov , P. Delsing

We investigate Meissner effect in normal metal/superconductor junctions where the interface is spin-active. We find that orbital magnetic susceptibility of the normal metal shows highly nontrivial behaviors. In particular, the magnetic…

超导电性 · 物理学 2011-06-21 Takehito Yokoyama , Yukio Tanaka , Naoto Nagaosa

Phase- and voltage bias-sensitive quasiparticle transport at a double $NIS_1IS_2$ interface is considered. The barriers $I$ range from tunnel to transparent, and the intermediate region $S_1$ has a width comparable to the superconducting…

介观与纳米尺度物理 · 物理学 2014-04-16 David Gosselin , Gaston Hornecker , Régis Mélin , Denis Feinberg

We investigate Superconductor/Ferromagnet (S/F) hybrid structures in the dirty limit, described by the Usadel equations. More precisely, the oscillations of the critical temperature and critical current with the thickness of the…

超导电性 · 物理学 2009-11-11 M. Faure , A. I. Buzdin , A. A. Golubov , M. Yu. Kupriyanov

The pseudogap is one of the most pervasive phenomena of high temperature superconductors. It is attributed either to incoherent Cooper pairing setting in above the superconducting transition temperature Tc, or to a hidden order parameter…

超导电性 · 物理学 2008-06-26 V. Hinkov , P. Bourges , S. Pailhes , Y. Sidis , A. Ivanov , C. D. Frost , T. G. Perring , C. T. Lin , D. P. Chen , B. Keimer

We study the Josephson effects arising in junctions made of non-centrosymmetric superconductors with spin-triplet pairing having $s$-wave orbital-singlet symmetry. We demonstrate that the orbital dependent character of the spin-triplet…

超导电性 · 物理学 2023-06-21 Yuri Fukaya , Yukio Tanaka , Paola Gentile , Keiji Yada , Mario Cuoco

We study the impact of spin-active scattering on Andreev spectra of point contacts between superconductors(SCs) and strongly spin-polarized ferromagnets(FMs) using recently derived boundary conditions for the Quasiclassical Theory of…

超导电性 · 物理学 2012-08-29 Roland Grein , Tomas Lofwander , Georgo Metalidis , Matthias Eschrig

We study the influence of dissipation on the switching current statistics of moderately damped Josephson junctions. Different types of both low- and high- $T_c$ junctions with controlled damping are studied. The damping parameter of the…

超导电性 · 物理学 2011-03-11 V. M. Krasnov , T. Golod , T. Bauch , P. Delsing

The interplay between superconductivity and ferromagnetism has long been pursued as a route to unconventional Josephson effects, yet suitable material platforms remain limited. Here we report Josephson junctions based on epitaxial…

Nonequilibrium effects in layered superconductors forming a stack of intrinsic Josephson junctions are investigated. We discuss two basic nonequilibrium effects caused by charge fluctuations on the superconducting layers: a) the shift of…

超导电性 · 物理学 2009-11-07 D. A. Ryndyk , J. Keller , C. Helm

We study a diffusive superconductor--ferromagnet--superconductor (SFS) junction with in-plane ferromagnetic domains. Close to the superconducting transition temperature, we describe the proximity effect in the junction with the linearized…

介观与纳米尺度物理 · 物理学 2007-10-02 B. Crouzy , S. Tollis , D. A. Ivanov

An intermittent Josephson effect in the form of voltage and temperature oscillations in the voltage - current curves near 2 K is observed in pellets consisting of superconducting TaC nanocapsules coated with graphite. This phenomenon is…

超导电性 · 物理学 2012-01-20 Dianyu Geng , Zhenhua Wang , Da Li , Zhidong Zhang , Xiaolin Wang

The effect of electrostatic gating on metallic elemental superconductors was recently demonstrated in terms of modulation of the switching current and control of the current phase relation in superconducting quantum interferometers. The…

超导电性 · 物理学 2021-10-28 Claudio Puglia , Giorgio De Simoni , Francesco Giazotto

The spin-orbit scattering effect on critical current through superconductor/ferromagnet (SF) bilayers separated by an insulator (SFIFS tunnel junction) have been investigated for the case of absence of the superconducting order parameter…

超导电性 · 物理学 2009-11-07 V. N. Krivoruchko , R. V. Petryuk