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Tunnelling between non-centrosymmetric superconductors with significant spin-orbit splitting is studied theoretically in a two-band treatment of the problem. We find that the critical Josephson current may be modulated by changing the…

超导电性 · 物理学 2007-05-23 K. Børkje , A. Sudbø

We study the Josephson effect between a conventional s-wave superconductor and a non-centrosymmetric superconductor with Rashba spin-orbit coupling. Rashba spin-orbit coupling affects the Josephson pair tunneling in a characteristic way.…

超导电性 · 物理学 2008-06-06 N. Hayashi , C. Iniotakis , M. Machida , M. Sigrist

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 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 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…

超导电性 · 物理学 2020-10-21 Yuri Fukaya , Yada Keiji , Yukio Tanaka , Paola Gentile , Mario Cuoco

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

Recently, the ``$(p+h)-$wave'' form of pairing symmetry has been proposed for the superconductivity in $PrOs_{4}Sb_{12}$ compound [Parker D, Maki K and Haas S, \textbf{cond-mat/0407254}]. In the present paper, a stationary Josephson…

超导电性 · 物理学 2009-11-11 G. Rashedi , Yu. A. Kolesnichenko

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,…

凝聚态物理 · 物理学 2009-10-28 M. B. Walker , J. Luettmer-Strathmann

We study Josephson current in superconductor / diffusive ferromagnet /superconductor junctions by using the recursive Green function method. When the exchange potential in a ferromagnet is sufficiently large as compared to the pair…

超导电性 · 物理学 2011-11-10 Yasuhiro Asano , Yuki Sawa , Yukio Tanaka , Alexander A. Golubov

The spin current in the Josephson junction as a weak link (interface) between misorientated triplet superconductors is investigated theoretically for the models of the order parameter in $UPt_{3}$. Green functions of the system are obtained…

超导电性 · 物理学 2009-03-02 G. Rashedi , Yu. A. Kolesnichenko

We calculate the Andreev bound states and the corresponding Josephson current for an asymmetric 2-dimensional Josephson junction by solving Bogoliubov-de-Gennes equations. The junction consists of a non-centrosymmetric superconductor (NCS)…

超导电性 · 物理学 2014-05-13 Ludwig Klam , Anthony Epp , Wei Chen , Manfred Sigrist , Dirk Manske

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

The breaking of time-reversal symmetry in a triplet superconductor Josephson junction is shown to cause a magnetic instability of the tunneling barrier. Using a Ginzburg-Landau analysis of the free energy, we predict that this novel…

介观与纳米尺度物理 · 物理学 2010-07-13 P. M. R. Brydon , Christian Iniotakis , Dirk Manske , M. Sigrist

We present an analysis of the symmetries of the interference pattern of critical currents through a two-dimensional superconductor-semiconductor-superconductor junction, taking into account Rashba and Dresselhaus spin-orbit interaction, an…

介观与纳米尺度物理 · 物理学 2016-04-13 Asbjørn Rasmussen , Jeroen Danon , Henri Suominen , Fabrizio Nichele , Morten Kjaergaard , Karsten Flensberg

In this thesis we study short Josephson junctions which include a region with Rashba spin-orbit coupling effect. Our junctions consists of two superconductors (S) and a 2-dimensional electron gas (2DEG) layer between them: S/2DEG/S…

超导电性 · 物理学 2019-10-01 A. F. Tzortzakakis , N. Flytzanis

We propose a controlled Josephson spin current across the junction of two non-centrosymmetric superconductors like CePt_3Si. The Josephson spin current arises due to direction dependent tunneling matrix element and different momentum…

超导电性 · 物理学 2009-11-11 Sudhansu S. Mandal , Soumya P. Mukherjee

The spin superconductor state is the spin-polarized triplet exciton condensate, which can be viewed as a counterpart of the charge superconductor state. As an analogy of the charge Josephson effect, the spin Josephson effect can be…

介观与纳米尺度物理 · 物理学 2024-03-01 W. Zeng , R. Shen

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

In two-dimensional electron systems with broken inversion and time-reversal symmetries, a Josephson junction reveals an anomalous response: the supercurrent is nonzero even at zero phase difference between two superconductors. We consider…

Charge transport in tunnel junctions between singlet anisotropically paired superconductors is investigated theoretically making use of the Eilenberger equations for the quasiclassical Green functions. For specularly reflecting tunnel…

凝聚态物理 · 物理学 2008-02-03 Yury S. Barash , Anatoly A. Svidzinsky
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