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We study the Josephson effect in the spin-singlet superconductor/altermagnet/spin-triplet superconductor junctions using the Green's function method. The current-phase difference relationships in the junctions strongly depend on the…

超导电性 · 物理学 2024-02-06 Qiang Cheng , Qing-Feng Sun

We study the Josephson effect in a triplet superconductor--ferromagnet--singlet superconductor junction. We show that the interaction of tunneling Cooper pairs with the interface magnetization can permit a Josephson current at the lowest…

超导电性 · 物理学 2013-08-22 P. M. R. Brydon , Wei Chen , Yasuhiro Asano , Dirk Manske

We study the Josephson effect in spin-triplet superconductor$-$quantum anomalous Hall insulator$-$spin-triplet superconductor junctions using the nonequilibrium Green function method. The current-phase difference relations show strong…

超导电性 · 物理学 2021-10-27 Qiang Cheng , Qing Yan , Qing-Feng Sun

We study the Josephson diode effect in the one-dimensional superconductor/helimagnet/superconductor junctions using the Green's function method. For the spin-singlet $s$-wave pairing in superconductors, it is found that the necessary…

超导电性 · 物理学 2026-05-29 Qiang Cheng , Yu-Chen Zhuang , Qing-Feng Sun

Josephson current in SFcFS junctions with arbitrary transparency of the constriction (c) is investigated. The emphasis is done on the analysis of the supercurrent dependencies on the misorientation angle $\theta $ between the in-plane…

超导电性 · 物理学 2009-11-11 A. V. Zaitsev

The Josephson effect in superconductor / diffusive ferromagnet / superconductor (SFS) junctions is studied using the recursive Green function method in the regime of large exchange energy in a ferromagnet. Motivated by recent experiment [R.…

超导电性 · 物理学 2015-06-25 Yasuhiro Asano , Yukio tanaka , Alexander Golubov

We study the Josephson effect in clean heterojunctions that consist of superconductors connected through two metallic ferromagnets with insulating interfaces. We solve the scattering problem based on the Bogoliubov--de Gennes equation for…

超导电性 · 物理学 2009-11-11 Z. Pajovic , M. Bozovic , Z. Radovic , J. Cayssol , A. Buzdin

We study theoretically the Josephson effect in junctions based on unconventional superconductors with diffusive barriers, using the quasiclassical Green's function formalism. Generalized boundary conditions at junction interfaces applicable…

超导电性 · 物理学 2009-11-11 T. Yokoyama , Y. Tanaka , A. A. Golubov

We study the effect of a magnetic field on the current-phase relation of a topological Josephson junction formed by connecting two superconductors through the helical edge states of a quantum spin-Hall insulator. We predict that the Zeeman…

介观与纳米尺度物理 · 物理学 2015-07-27 Fabrizio Dolcini , Manuel Houzet , Julia S. Meyer

We discuss the Josephson current between two noncentrosymmetric superconductors. The coexistence of superconducting order parameters between spin-singlet $\Delta_{\text{S}}$ and helical p-wave spin-triplet $\Delta_{\text{T}}$ enriches a…

超导电性 · 物理学 2015-05-28 Yasuhiro Asano , Satoshi Yamano

We present theory of dc Josephson effect in contacts between Fe-based and spin-singlet $s$-wave superconductors. The method is based on the calculation of temperature Green's function in the junction within the tight-binding model. We…

The Josephson diode effect, where the critical current magnitude depends on its direction, arises when both time-reversal and inversion symmetries are broken - often achieved by a combination of spin-orbit interaction and applied magnetic…

介观与纳米尺度物理 · 物理学 2025-02-13 Gerrit Behner , Abdur Rehman Jalil , Detlev Grützmacher , Thomas Schäpers

We study the Josephson effect between chiral p-wave superconductor / diffusive normal metal (DN) / chiral p-wave superconductor (CP/DN/CP) junctions using quasiclassical Green's function formalism with proper boundary conditions. The…

超导电性 · 物理学 2009-11-11 Y. Sawa , T. Yokoyama , Y. Tanaka , A. A. Golubov

We study the surface density of states in $p$-wave unconventional magnet-spin-singlet $s$-wave superconductor hybrid systems ($p$-wave unconventional magnetic superconductors). Owing to the noncollinear spin structure in $p$-wave…

超导电性 · 物理学 2026-03-27 Yuri Fukaya , Keiji Yada , Yukio Tanaka

We study theoretically the Josephson effect between two time-reversal two-band superconductors, where we assume the equal-time spin-singlet $s$-wave pair potential in each conduction band. %as well as the band asymmetry and the band…

超导电性 · 物理学 2020-05-13 Akihiro Sasaki , Satoshi Ikegaya , Tetsuro Habe , Alexander A. Golubov , Yasuhiro Asano

We present a theoretical study of the effect of spin-filtering on the Josephson and dissipative quasiparticle currents in a superconducting tunnel junction. By combining the quasiclassical Green's functions and the tunneling Hamiltonian…

超导电性 · 物理学 2015-06-05 F. S. Bergeret , A. Verso , A. F. Volkov

We present a theoretical study of the spin-resolved Josephson diode effect in junctions comprising strongly spin-polarized conical magnets (FM) coupled to singlet superconductors (SC). The system is treated by making use of the…

超导电性 · 物理学 2025-08-11 Danilo Nikolić , Niklas L. Schulz , Alexander I. Buzdin , Matthias Eschrig

It is shown that in magnetic superconductors with spiral magnetic order the Josephson current has an additional contribution which depends: (i) on the relative orientation (magnetic phase) $\theta =\theta_{L}-\theta_{R}$ of magnetizations…

强关联电子 · 物理学 2007-05-23 Miodrag L. Kulic , Igor M. Kulic

We study Josephson current between s-wave/spin-triplet superconductor junctions by taking into account details of band structures in Sr$_{2}$RuO$_{4}$ such as three conduction bands, spin-orbit interaction in the bulk and that at the…

超导电性 · 物理学 2017-05-31 Kohei Kawai , Keiji Yada , Yukio Tanaka , Yasuhiro Asano , A. A. Golubov , Satoshi Kashiwaya

We study the Josephson effect in a trijunction formed by two topological superconductor (TS) wires and a conventional $s$-wave superconductor. Using a boundary Green's function formalism, analytical results for the current-phase relation…

介观与纳米尺度物理 · 物理学 2017-07-28 A. Zazunov , R. Egger , M. Alvarado , A. Levy Yeyati
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