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相关论文: Nonequilibrium Josephson effect in short-arm diffu…

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We demonstrate an Al superconducting quantum interference device in which the Josephson junctions are implemented through gate-controlled proximitized Cu mesoscopic weak-links. The latter behave analogously to genuine superconducting metals…

Recent Josephson tunneling experiments on twisted flakes of high-$T_c$ cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ revealed a non-reciprocal behavior of the critical interlayer Josephson current - i.e., a Josephson diode effect.…

In this paper we extend our earlier analysis of the novel Josephson effect in triplet superconductor--ferromagnet--triplet superconductor (TFT) junctions [B. Kastening \emph{et al.}, Phys. Rev. Lett. {\bf{96}}, 047009 (2006)]. In our more…

超导电性 · 物理学 2009-01-26 P. M. R. Brydon , Boris Kastening , Dirk K. Morr , Dirk Manske

We study coherent current states in the mesoscopic superconducting weak link simultaneously subjected to the order parameter phase difference on the contact and to the tangential to the junction interface superfluid velocity in the banks.…

超导电性 · 物理学 2009-11-10 Yu. A. Kolesnichenko , A. N. Omelyanchouk , S. N. Shevchenko

We study the emergence of dissipation in an atomic Josephson junction between weakly-coupled superfluid Fermi gases. We find that vortex-induced phase slippage is the dominant microscopic source of dissipation across the BEC-BCS crossover.…

量子气体 · 物理学 2018-01-17 A. Burchianti , F. Scazza , A. Amico , G. Valtolina , J. A. Seman , C. Fort , M. Zaccanti , M. Inguscio , G. Roati

We study a resistively and capacitively shunted Josephson junction, which is driven by a combination of time-periodic and constant currents. Our investigations concern three main problems: (A) The voltage fluctuations across the junction;…

超导电性 · 物理学 2010-01-20 L. Machura , M. Kostur , P. Talkner , P. Hanggi , J. Luczka

We investigate the proximity effect in junctions between $N=3$ superconductors under commensurate voltage bias. The bias is chosen to highlight the role of transport processes that exchange multiple Cooper pairs coherently between more than…

介观与纳米尺度物理 · 物理学 2017-06-01 Ciprian Padurariu , Thibaut Jonckheere , Jérôme Rech , Thierry Martin , Denis Feinberg

We observe a series of discontinuities in the above gap current/voltage characteristics of highly transmissive Nb/Si superconductor/semiconductor interfaces. The bias at which each switch occurs decreases in quantized steps as a function of…

超导电性 · 物理学 2009-10-30 M. J. Black , B. W. Alphenaar , H. Ahmed

For certain orientations of Josephson junctions between two p_x-wave or two d-wave superconductors, the subgap Andreev bound states produce a 4pi-periodic relation between the Josephson current I and the phase difference phi: I ~…

超导电性 · 物理学 2007-05-23 Hyok-Jon Kwon , K. Sengupta , Victor M. Yakovenko

The critical currents in Josephson junctions of conventional superconductors with macroscopic defects are calculated for different defect critical current densities as a function of the magnetic field. We also study the evolution of the…

超导电性 · 物理学 2009-10-31 N. Stefanakis , N. Flytzanis

The dc Josephson effect refers to the dissipationless electrical current -- the supercurrent -- that can be sustained across a weak link connecting two bulk superconductors. This effect is a probe of the fundamental nature of the…

超导电性 · 物理学 2007-05-23 Michael Hermele , Gil Refael , Matthew P. A. Fisher , Paul M. Goldbart

Nonreciprocal microwave transmission through a long Josephson junction in the flux-flow regime is studied analytically and numerically within the framework of the perturbed sine-Gordon model. We demonstrate that the maximum attenuation of…

超导电性 · 物理学 2015-09-09 A. L. Pankratov , K. G. Fedorov , M. Salerno , S. V. Shitov , A. V. Ustinov

Motivated by the recent proposals for unconventional emergent physics in twisted bilayers of nodal superconductors, we study the peculiarities of the Josephson effect at the twisted interface between $d$-wave superconductors. We demonstrate…

超导电性 · 物理学 2025-01-31 Pavel A. Volkov , Shu Yang Frank Zhao , Nicola Poccia , Xiaomeng Cui , Philip Kim , J. H. Pixley

Due to the absence of a center of inversion in some superconducting compounds, a p-wave admixture to the dominant d-wave order parameter must exist. If time-reversal is also violated, an allowed invariant is the product of the d-wave,…

超导电性 · 物理学 2016-08-31 Brigitte Leridon , Tai-Kai Ng , C. M. Varma

Theory of non-stationary coherent effects is developed for superconductor-normal-superconductor (SNS) structures with relatively strong normal scattering on S/N interfaces (interface resistance is large compared to intrinsic resistance of N…

超导电性 · 物理学 2015-05-13 K. S. Tikhonov , M. V. Feigel'man

Edge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineered on a topological insulator Ta2Pd3Te5 with asymmetric…

We formulate a fully self-consistent, microscopic model to study the retardation and correlation effects of the barrier within a Josephson junction. The junction is described by a series of planes, with electronic correlation included…

超导电性 · 物理学 2009-10-31 P. Miller , J. K. Freericks

The properties of Josephson devices are strongly affected by geometrical effects such as those associated with the magnetic field induced by the bias current. The generally adopted analysis of Owen and Scalapino [{\it Phys. Rev.}{\bf 164},…

超导电性 · 物理学 2013-04-18 Roberto Monaco , Valery P. Koshelets , Anna Mukhortova , Jesper Mygin

Two parallel stacks of coupled Josephson junctions are investigated to clarify the physics of transitions between the rotating and oscillating states and their effect on the IV-characteristics of the system. The detailed study of phase…

超导电性 · 物理学 2014-08-08 Yu. M. Shukrinov , I. R. Rahmonov , A. Plecenik , M. Grajcar , P. Seidel , E. Il'ichev , W. Nawrocki

Longitudinal non-dissipative current states in bilayer electron-hole systems in the presence of potential barriers that divide the system into left and right sides was investigated. The consideration is performed both for the case of weak…

介观与纳米尺度物理 · 物理学 2026-03-13 S. I. Shevchenko , O. M. Konstantynov