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Rotation and quantum tunneling are fundamental concepts in physics, and their interplay in the ultracold atomic systems is of particular interest. In this theoretical work, we explore how tunneling dynamics in a bosonic Josephson junction…

Quantum Gases · Physics 2026-01-21 Rhombik Roy , Ofir E. Alon

The transition-metal dichalcogenides featuring Ising spin-orbit coupling in so-called Ising superconductors offer a unique system to study the interplay of singlet and triplet superconductivity. The presence of high critical fields,…

Mesoscale and Nanoscale Physics · Physics 2024-11-07 Sourabh Patil , Gaomin Tang , Wolfgang Belzig

Josephson junctions with three or more superconducting leads have been predicted to exhibit topological effects in the presence of few conducting modes within the interstitial normal material. Such behavior, of relevance for…

Mesoscale and Nanoscale Physics · Physics 2020-02-25 Gino V. Graziano , Joon Sue Lee , Mihir Pendharkar , Chris Palmstrøm , Vlad S. Pribiag

Exploiting the recently derived quantum Smoluchowski equation the classical Ivanchenko Zil'berman theory for overdamped diffusive phase motion of low capacitance Josephson junctions is extended to the low temperature quantum domain where…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Joachim Ankerhold

We propose the two-band s-d model to describe theoretically a diffuse regime of the spin-dependent electron transport in magnetic tunnel junctions (MTJ's) of the form F/O/F where F's are 3d transition metal ferromagnetic layers and O is the…

Materials Science · Physics 2009-11-07 D. Bagrets , A. Bagrets , A. Vedyayev , B. Dieny

A quantitative analysis of a microscopic model for the intrinsic Josephson effect in high-temperature superconductors based on interlayer tunneling is presented. The pairing correlations in the CuO_2-planes are modelled by a 2-D…

Strongly Correlated Electrons · Physics 2008-02-03 O. Schmitt , H. Endres , W. Hanke , R. Kleiner , P. Mueller

Within the tunneling Hamiltonian formulation for the eight-component spinors,the Josephson critical super-current has been calculated in a planar superconductor-normal graphene-superconductor junction. Coupling between superconductor…

Superconductivity · Physics 2012-05-30 E. Sarvestani , S. A. Jafari

We calculate the dc supercurrent through a Josephson tunnel junction consisting of an antiferromagnetic (AF) interlayer sandwiched between two d-wave superconductors (d). Such d/AF/d junctions exhibit a rich dependence of the Josephson…

Superconductivity · Physics 2009-11-13 Brian M. Andersen , Yu. S. Barash , S. Graser , P. J. Hirschfeld

We report measurements of switching-current distribution (SWCD) from a phase-diffusion branch to a quasiparticle-tunneling branch as a function of temperature in a cuprate-based intrinsic Josephson junction. Contrary to the…

Superconductivity · Physics 2008-07-25 Myung-Ho Bae , M. Sahu , Hu-Jong Lee , A. Bezryadin

Ion beam damage combined with nanoscale focused ion beam direct milling was used to create manufacturable SNS type Josephson junctions in 100 nm thick MgB$_{2}$ with T$_{C}$ of 38 K. The junctions show non-hysteretic current - voltage…

Superconductivity · Physics 2018-07-04 D. -J. Kang , N. H. Peng , R. Webb , C. Jeynes , J. H. Yun , S. H. Moon , D. Oh , G. Burnell , E. J. Tarte , D. F. Moore , M. G. Blamire

The role of dipole-dipole interaction between Josephson diamagnetic moments is considered within a model system of two clusters (each cluster contains three weakly connected superconducting grains). The sign of the resulting critical…

Superconductivity · Physics 2009-10-31 Sergei A. Sergeenkov

Superconducting circuits incorporating Josephson tunnel junctions are widely used for fundamental research as well as for applications in fields such as quantum information and magnetometry. The quantum coherent nature of Josephson…

Mesoscale and Nanoscale Physics · Physics 2021-11-04 L. Peyruchat , J. Griesmar , J. -D. Pillet , Ç. Ö. Girit

VI-curves of resistively shunted single Josephson junctions with different capacitances and tunneling resistances are found to display a crossover between two types of VI-curves: one without and another with a resistance bump (negative…

Mesoscale and Nanoscale Physics · Physics 2019-10-01 J. S. Penttila , U. Parts , P. J. Hakonen , M. A. Paalanen , E. B. Sonin

We study charge transport in voltage-biased single-channel junctions involving helical superconductors with finite Cooper pair momentum. For a Josephson junction, the equilibrium current-phase relation shows a superconducting diode effect:…

Superconductivity · Physics 2024-07-08 A. Zazunov , J. Rech , T. Jonckheere , B. Grémaud , T. Martin , R. Egger

Multiterminal superconducting junctions have revitalized the investigation of the Josephson effect. One of the most interesting aspects of these hybrid systems is the occurrence of multi-Cooper pair tunneling processes that have no analog…

Superconductivity · Physics 2025-08-01 Miriam Rike Ebert , David Christian Ohnmacht , Wolfgang Belzig , Juan Carlos Cuevas

Highly transmissive ballistic junctions are demonstrated between Nb and the two-dimensional electron gas formed at an InAs/AlSb heterojunction. A reproducible fabrication protocol is presented yielding high critical supercurrent values.…

We report microwave surface impedance measurements made on a single crystal of PrOs_4Sb_12 across the frequency range 0.5 to 21 GHz. The penetration depth data provide clear thermodynamic evidence for superconductivity arising in two bands…

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…

Superconductivity · Physics 2009-01-26 P. M. R. Brydon , Boris Kastening , Dirk K. Morr , Dirk Manske

We investigate the Josephson transport properties in a Josephson junction consisting of a conventional $s$-wave superconductor coupled to a multi-orbital noncentrosymmetric superconductor marked by an orbitally driven inversion asymmetry…

Superconductivity · Physics 2020-10-21 Yuri Fukaya , Yada Keiji , Yukio Tanaka , Paola Gentile , Mario Cuoco

This article describes the Josephson tunneling from time-reversal symmetry-breaking states and compares it with that from time-reversal invariant states for both twinned and untwinned crystals and for both $c$-axis and basal-plane currents,…

Condensed Matter · Physics 2009-10-28 M. B. Walker , J. Luettmer-Strathmann