中文
相关论文

相关论文: Re-orientation of easy axis in $\varphi_0$ junctio…

200 篇论文

We study the spin mixing dynamics of ultracold spin-1 atoms in a weak non-uniform magnetic field with field gradient $G$, which can flip the spin from +1 to -1 so that the magnetization $m=\rho_{+}-\rho_{-}$ is not any more a constant. The…

量子气体 · 物理学 2017-04-06 Jie Zhang , Baoguo Yang , Yunbo Zhang

We calculate the Josephson current in a diffusive superconductor/ferromagnet/superconductor junction, where the ferromagnetic region contains multiple layers (or domains). In particular, we study a configuration where there are two layers…

超导电性 · 物理学 2009-11-13 Iver B. Sperstad , Jacob Linder , Asle Sudbø

We study the Josephson-like spin currents between two ferromagnetic metals by deriving the effective action of the junction. A DC spin Josephson current with the full O(3) symmetry is obtained. By the analogy to the superconducting…

介观与纳米尺度物理 · 物理学 2009-11-10 Yu-Li Lee , Yu-Wen Lee

We study the Josephson effect in a superconductor--ferromagnet--superconductor (SFS) junction with ferromagnetic domains of non-collinear magnetization. As a model for our study we consider a diffusive junction with two ferromagnetic…

超导电性 · 物理学 2007-05-23 B. Crouzy , S. Tollis , D. A. Ivanov

We present a theory of the Josephson current in superconductor-normal metal-superconductor (SNS) junctions in the presence of generic spin-dependent fields, such as spin-orbit coupling (SOC), Zeeman fields, and altermagnetism. We consider…

超导电性 · 物理学 2026-04-10 Maryam Darvishi , F. Sebastián Bergeret , Stefan Ilić

The review is devoted to the fundamental aspects and characteristic features of the magnetoelectric effects, reported in the literature on Josephson junctions (JJs). The main focus of the review is on the manifestations of the direct and…

超导电性 · 物理学 2022-07-20 I. V. Bobkova , A. M. Bobkov , M. A. Silaev

A key phenomenon related to the Josephson effect is oscillations of different properties of superconducting tunneling junctions with magnetic field. We consider magnetic oscillations of the critical current in stacks of intrinsic Josephson…

超导电性 · 物理学 2011-11-09 A. E. Koshelev

We study theoretically the critical current in semiconductor nanowire Josephson junction with strong spin-orbit interaction. The critical current oscillates by an external magnetic field. We reveal that the oscillation of critical current…

介观与纳米尺度物理 · 物理学 2014-08-04 Tomohiro Yokoyama , Mikio Eto , Yuli V. Nazarov

We model the static behavior of point Josephson junctions in a micro strip line using a 1D linear differential equation with delta distributed sine non-linearities. We analyze the maximum current $\gamma_{max}$ crossing the micro strip for…

数学物理 · 物理学 2007-05-23 J. G Caputo , L. Loukitch

We discuss the effects of thermal noise on the magnetic response of a lateral ferromagnetic Josephson junction with spin-orbit coupling and out-of-plane magnetization. The direction of the magnetic moment in the ferromagnetic layer can be…

超导电性 · 物理学 2020-10-29 C Guarcello , FS Bergeret

Josephson currents are carried by sharp Andreev states within the superconducting energy gap. We theoretically study the electronic transport of a magnetically tunable nanoscale junction consisting of a quantum dot connected to two…

介观与纳米尺度物理 · 物理学 2014-04-11 P. Stadler , C. Holmqvist , W. Belzig

The Josephson current in a diffusive superconductor/ferromagnet/superconductor junction with precessing magnetization is calculated within the quasiclassical theory of superconductivity. When the junction is phase-biased, a stationary…

超导电性 · 物理学 2015-03-31 M. Houzet

We theoretically consider a Josephson junction formed by a ferromagnetic spacer with a strong spin-orbit interaction or a magnetic spin valve, i.e., a bilayer with one static and one free layer. Electron spin transport facilitates a…

介观与纳米尺度物理 · 物理学 2015-05-30 Silas Hoffman , Ya. M. Blanter , Yaroslav Tserkovnyak

In magnetic systems with dominating easy-plane anisotropy the magnetization can be described by an effective one dimensional equation for the in-plane angle. Re-deriving this equation in the presence of spin-transfer torques, we obtain a…

材料科学 · 物理学 2009-06-24 Ya. B. Bazaliy

We study the ponderomotive potential of a bosonic Josephson junction periodically modulated by a high-frequency electromagnetic field. Within the small population difference approximation, the ponderomotive drive induces the well-known…

量子气体 · 物理学 2025-10-24 Jiadu Lin , Qing-Dong Jiang

We investigate Josephson junctions among conventional superconducting wires, in the presence of externally applied Zeeman fields and supercurrents. We demonstrate that the critical Josephson current and the current-phase relation of the…

超导电性 · 物理学 2022-08-02 Giorgos Livanas

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 current in long ballistic superconductor-monolayer graphene-superconductor junctions. As a first step, we have developed an efficient computational approach to calculate the Josephson current in tight-binding systems.…

介观与纳米尺度物理 · 物理学 2016-06-15 Péter Rakyta , Andor Kormányos , József Cserti

Effects of an incoming spin-polarized current on a magnetic moment are explored. We found that the spin torque occurs only when the incoming spin changes as a function of time inside of the magnetic film. This implies that some…

材料科学 · 物理学 2007-05-23 Wonkee Kim , F. Marsiglio

We investigate analytically and numerically a Josephson junction on finite domain with two $\pi$-discontinuity points characterized by a jump of $\pi$ in the phase difference of the junction, i.e. a 0-$\pi$-0 Josephson junction. The system…

超导电性 · 物理学 2015-05-13 Saeed Ahmad , Hadi Susanto , Jonathan A. D. Wattis