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The stationary Josephson effect is studied theoretically in the situation when there is externally injected transport supercurrent which flows in the banks parallel to the contact interface. Coexistence of this supercurrent with the order…

超导电性 · 物理学 2015-06-25 A. N. Omelyanchouk , S. N. Shevchenko , Yu. A. Kolesnichenko

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

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

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

The influence of electron reflection on dc Josephson effect in a ballistic point contact with transport current in the banks is considered theoretically. The effect of finite transparency on the vortex-like currents near the contact and at…

超导电性 · 物理学 2009-11-10 G. Rashedi , Yu. A. Kolesnichenko

In this paper, the nonlocal mixing of coherent current states in d-wave superconducting banks is investigated. The superconducting banks are connected via a ballistic point contact. The banks have a mis-orientation and a phase difference.…

超导电性 · 物理学 2009-10-02 Gholamreza Rashedi

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 transport properties and also local density of states in a clean superconductor-normal metal-superconductor Josephson junction with triplet f-wave superconductors based on the Eilenberger equation. Effects of thickness of normal…

超导电性 · 物理学 2016-10-05 Yousef Rahnavard , Gholamreza Rashedi , Takehito Yokoyama

We investigate spin-dependent quasiparticle and Cooper-pair transport through a central node interfaced with two superconductors and two ferromagnets. We demonstrate that voltage biasing of the ferromagnetic contacts induces superconducting…

超导电性 · 物理学 2020-09-04 Ali Rezaei , Robert Hussein , Akashdeep Kamra , Wolfgang Belzig

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…

超导电性 · 物理学 2015-05-27 A. M. Bobkov , I. V. Bobkova

We determine, using a self consistent method, the charge and spin currents in ballistic Josephson junctions consisting of ferromagnetic ($F$) layers sandwiched between superconducting ($S$) electrodes ($SFS$-type junctions). When there are…

超导电性 · 物理学 2015-11-24 Klaus Halterman , Oriol T. Valls , Chien-Te Wu

We present a theory for quasiparticle heat transport through superconducting weak links. The thermal conductance depends on the phase difference ($\phi$) of the superconducting leads. Branch conversion processes, low-energy Andreev bound…

超导电性 · 物理学 2007-05-23 Erhai Zhao , Tomas Lofwander , J. A. Sauls

SHORTENED ABSTRACT: We study numerically the properties of spin- and charge-transport in a nanoscale diffusive superconductor$\mid$ferromagnet$\mid$superconductor junction when the magnetization texture is non-uniform. Specifically, we…

超导电性 · 物理学 2010-01-15 Mohammad Alidoust , Jacob Linder , Gholamreza Rashedi , Takehito Yokoyama , Asle Sudbø

We investigate spin transport in voltage-biased spin-active Josephson junctions. The interplay of spin filtering, spin mixing, and multiple Andreev reflection leads to nonlinear voltage dependence of the dc and ac spin current. We compute…

超导电性 · 物理学 2009-11-11 Erhai Zhao , J. A. Sauls

The mixed phase of layered superconductors with no magnetic screening is studied through a partial duality analysis of the corresponding XY model in the presence of random pinning centers. Sufficiently weak Josephson coupling between…

超导电性 · 物理学 2009-11-10 J. P. Rodriguez

Charge and spin Josephson currents in a ballistic superconductor-ferromagnet-superconductor junction with spin-triplet pairing symmetry are studied using the quasiclassical Eilenberger equation. The gap vector of superconductors has an…

超导电性 · 物理学 2015-05-19 Yousef Rahnavard , Gholamreza Rashedi , Takehito Yokoyama

We theoretically investigate the properties of ultra-cold dipolar atoms in radially coupled, concentric annular traps created by a potential barrier. The non-rotating ground-state phases are investigated across the superfluid-supersolid…

量子气体 · 物理学 2025-06-30 Malte Schubert , Koushik Mukherjee , Tilman Pfau , Stephanie Reimann

We discuss some of the basic theoretical aspects of current-carrying states in superconducting superlattices with tunnel barriers in the mesoscopic regime, when the superconducting layer thickness is small compared to the BCS coherence…

凝聚态物理 · 物理学 2009-10-31 S. V. Kuplevakhsky , A. V. Naduev , S. V. Naydenov

The mixed phase of layered superconductors with no magnetic screening is studied through a partial duality analysis of the corresponding frustrated XY model in the presence of weak random point pins. Isolated layers exhibit a defective…

超导电性 · 物理学 2009-11-10 J. P. Rodriguez

We study the weak link between current-carrying superconductors, both conventional and d-wave. The state of the system is controlled by two parameters: the order parameter phase difference $\phi$ and the superfluid velocity $v_{s}$, which…

超导电性 · 物理学 2017-08-23 S. N. Shevchenko
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