English
Related papers

Related papers: Nonlinear Seebeck Effect in a Model Granular Super…

200 papers

Transport measurements carried out on twinned ybco films are compared to the predictions of a previously proposed model suggesting that the vortices move along the films twin boundaries that behave as rows of Josephson weak links…

Superconductivity · Physics 2007-12-24 P. Bernstein , J. F. Hamet , Y. Thimont

We study theoretically the Josephson effect in d-wave superconductor / diffusive normal metal /insulator/ diffusive normal metal/ d-wave superconductor (D/DN/I/DN/D) junctions. This model is aimed to describe practical junctions in…

Superconductivity · Physics 2009-11-13 T. Yokoyama , Y. Sawa , Y. Tanaka , A. A. Golubov , A. Maeda , A. Fujimaki

By measuring the Josephson emission of a diffusive Superconductor-Normal metal-Superconductor (SNS) junction at a finite temperature we reveal a non-trivial sensitivity of the supercurrent to microwave irradiation. We demonstrate that the…

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…

Superconductivity · Physics 2012-01-20 Dianyu Geng , Zhenhua Wang , Da Li , Zhidong Zhang , Xiaolin Wang

The usually negligibly small thermoelectric effects in superconducting heterostructures can be boosted dramatically due to the simultaneous effect of spin splitting and spin filtering. Building on an idea of our earlier work [Phys. Rev.…

Mesoscale and Nanoscale Physics · Physics 2015-02-20 P. Machon , M. Eschrig , W. Belzig

We study the Josephson effect between weakly coupled d-wave superconductors within the quasiclassical theory, in particular, the influence of interface roughness on the current-phase relation and the critical current of mirror junctions and…

Superconductivity · Physics 2007-05-23 T. Lueck , P. Schwab , U. Eckern , A. Shelankov

A superconducting quantum interference device (SQUID) was prepared on a micron-sized single crystal using a selected growth domain of a thin film of $CeCoIn_5$ grown by molecular beam epitaxy. SQUID voltage oscillations of good quality were…

Strongly Correlated Electrons · Physics 2011-08-16 Oleksandr Foyevtsov , Fabrizio Porrati , Michael Huth

We theoretically investigate the phase-dependent heat transport of a temperature-biased granular Josephson junction in the presence of a perpendicular magnetic field. We illustrate the influence of geometry of the junction on the thermal…

Superconductivity · Physics 2019-06-13 Elaheh Afsaneha , Heshmatolah Yavari

We investigate the in-field critical current density Jc(B) of SNS Josephson Junctions (JJs) and polycrystalline superconductors with grain boundaries modelled as Josephson type planar defects, both analytically and through computational…

Superconductivity · Physics 2021-10-06 A. I. Blair , D. P. Hampshire

The transport properties of a topological Josephson junction fabricated from a magnetically doped topological insulator (TI) were investigated. The conductance spectra of the Nb/Fe-Bi$_2$Te$_2$Se/Nb junction below 1 K showed an unusual…

Superconducting tunnel junctions constitute the units of superconducting quantum circuits and are massively used both for quantum sensing and quantum computation. In previous works, we predicted the existence of a nonlinear thermoelectric…

Mesoscale and Nanoscale Physics · Physics 2020-10-21 G. Marchegiani , A. Braggio , F. Giazotto

We demonstrate a low-dissipation dielectric metamaterial with tunable properties based on the Josephson effect. Superconducting wires loaded with regularly spaced Josephson junctions ($I_c \approx 0.25$ $\mu$A) spanning a K-band waveguide…

Superconductivity · Physics 2019-11-06 Melissa Trepanier , Daimeng Zhang , Lyudmila Filippenko , Valery Koshelets , Steven M. Anlage

The predominant d-wave pairing symmetry in high temperature superconductors allows for a variety of current-phase relations in Josephson junctions, which is to a certain degree fabrication controlled. In this letter we report on direct…

Superconductivity · Physics 2009-11-10 T. Lindstrom , S. A. Charlebois , A. Ya. Tzalenchuk , Z. Ivanov , M. H. S. Amin , A. M. Zagoskin

This work presents the study of some new anomalous electromagnetic effects in graphite-like thin carbon films. These are: The fast switching (1nanosecond) of electrical conductivity The detection of microwave radiation and its temperature…

Superconductivity · Physics 2008-02-15 Sergey G. Lebedev

We develop a microscopic analysis of superconducting and dissipative currents in junctions between superconductors with d-wave symmetry of the order parameter. We study the proximity effect in such superconductors and show that for certain…

Condensed Matter · Physics 2009-10-22 Yu. S. Barash , A. V. Galaktionov , A. D. Zaikin

The Josephson current flowing through weak links containing ferromagnetic elements is studied theoretically under the condition that the quasiparticle distribution over energy states in the interlayer is spin-dependent. It is shown that the…

Superconductivity · Physics 2015-05-27 A. M. Bobkov , I. V. Bobkova

We predict a novel type of Josephson effect to occur in triplet superconductor - ferromagnet - triplet superconductor Josephson junctions. We show that the Josephson current, I_J, exhibits a rich dependence on the relative orientation…

Superconductivity · Physics 2007-05-23 Boris Kastening , Dirk K. Morr , Dirk Manske , Karl Bennemann

Superconductivity can be induced in a normal material via the leakage of superconducting pairs of charge carriers from an adjacent superconductor. This so-called proximity effect is markedly influenced by graphene unique electronic…

We present a theory for the Josephson effect in an unconventional superconductor / one-dimensional electron gas / unconventional superconductor (s/o/s) junction, where the Josephson current is carried by components injected perpendicular to…

Superconductivity · Physics 2009-10-31 Yukio Tanaka , Takashi Hirai , Koichi Kusakabe , Satoshi Kashiwaya

A temperature gradient ${\Delta}T$ across a Josephson junction induces a thermoelectric current. We predict the AC Josephson effect is activated when this current surpasses the junction's critical current. Our investigation of this…

Superconductivity · Physics 2025-04-03 Olli Mansikkamäki , Francesco Giazotto , Alexander Balatsky