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We give a simple way to detect the geometric phase shift and the conditional geometric phase shift with Josephson junction system. Comparing with the previous work(Falcl G, Fazio R, Palma G.M., Siewert J and Verdal V, {\it Nature} {\bf…

量子物理 · 物理学 2009-11-07 Wang Xiangbin , Matsumoto Keiji

The coupling of Josephson oscillations in layered superconductors is studied with help of a tunneling Hamiltonian formalism. The general form of the current density across the barriers between the superconducting layers is derived. The…

超导电性 · 物理学 2015-06-25 Ch. Preis , Ch. Helm , J. Keller , A. Sergeev , R. Kleiner

We investigate the crossed Josephson effect in a geometry consisting of a double ferromagnetic bridge between two superconductors, with tunnel interfaces. The crossed Josephson current vanishes on average because the Andreev reflected hole…

介观与纳米尺度物理 · 物理学 2007-05-23 R. Mélin

We consider an asymmetric 0-pi Josephson junction consisting of 0 and pi regions of different lengths L_0 and L_pi. As predicted earlier this system can be described by an effective sine-Gordon equation for the spatially averaged phase psi…

超导电性 · 物理学 2012-01-24 E. Goldobin , D. Koelle , R. Kleiner , R. G. Mints

In the classical Josephson effect the phase difference across the junction is well defined, and the supercurrent is reduced only weakly by phase diffusion. For mesoscopic junctions with small capacitance the phase undergoes large quantum…

介观与纳米尺度物理 · 物理学 2007-05-23 Hermann Grabert , Gert-Ludwig Ingold

Critical current was recently measured near the transition from 0 to $\pi$-contact in superconductor/ferromagnet/superconductor Josephson junctions. Contrary to expectations, it does not vanish at the transition point. It shows instead a…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Houzet , V. Vinokur , F. Pistolesi

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

Traditionally, since the discovery of the Josephson effect in 1962, the magnetic diffraction pattern of planar Josephson tunnel junctions has been recorded with the field applied in the plane of the junction. Here we discuss the static…

超导电性 · 物理学 2012-03-29 R. Monaco , M. Aaroe , J. Mygind , V. P. Koshelets

The magnetic field distribution in the barrier of small planar Josephson tunnel junctions is numerically simulated in the case when an external magnetic field is applied perpendicular to the barrier plane. The simulations allow for…

超导电性 · 物理学 2011-01-11 R. Monaco , M. Aaroe , V. P. Koshelets , J. Mygind

We consider the finite-frequency response of multiterminal Josephson junctions and show how non-reciprocity in them can show up at linear response, in contrast to the static Josephson diodes featuring non-linear non-reciprocity. At finite…

超导电性 · 物理学 2024-01-24 Pauli Virtanen , Tero T. Heikkilä

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 study the proximity effect between conventional superconductor and magnetic normal metal with a spin-orbit interaction of the Rashba type. Using the phenomenological Ginzburg-Landau theory and the quasiclassical Eilenberger approach it…

超导电性 · 物理学 2009-11-13 A. Buzdin

Semiconductor-superconductor hybrid nanocircuits are of high interest due to their potential applications in quantum computing. Semiconductors with a strong spin-orbit coupling and large $g$-factor are particularly attractive since they are…

This paper applies recent results on the robust stability of nonlinear quantum systems to the case of a Josephson junction in a resonant cavity. The Josephson junction is characterized by a Hamiltonian operator which contains a…

量子物理 · 物理学 2016-11-15 Ian R. Petersen

A nonstationary anomalous Hall current is calculated for a voltage biased Josephson junction, which is composed of two s-wave superconducting contacts deposited on the top of a three dimensional topological insulator (TI). A homogeneous…

超导电性 · 物理学 2019-07-24 A. G. Mal'shukov

Short ballistic graphene Josephson junctions sustain superconducting current with a non-sinusoidal current-phase relation up to a critical current threshold. The current-phase relation, arising from proximitized superconductivity, is…

介观与纳米尺度物理 · 物理学 2020-01-09 Francesco M. D. Pellegrino , Giuseppe Falci , Elisabetta Paladino

We have realized multifacet Josephson junctions with periodically alternating critical current density (MJJs) using superconductor-insulator-ferromagnet-superconductor heterostructures. We show that anomalous features of critical current…

超导电性 · 物理学 2011-09-30 S. Scharinger , C. Gürlich , R. G. Mints , M. Weides , H. Kohlstedt , E. Goldobin , D. Koelle , R. Kleiner

The critical behavior of frustrated Josephson-junction arrays at $f=1/2$ flux quantum per plaquette is considered. Results from Monte Carlo simulations and transfer matrix computations support the identification of the critical behavior of…

凝聚态物理 · 物理学 2009-10-28 Enzo Granato , J. M. Kosterlitz , M. P. Nightingale

Quantitative theory of the Josephson effect in SFIFS junctions (S denotes bulk superconductor, F - metallic ferromagnet, I - insulating barrier) is presented in the dirty limit. Fully self-consistent numerical procedure is employed to solve…

超导电性 · 物理学 2007-05-23 A. A. Golubov , M. Yu. Kupriyanov , Ya. V. Fominov

We propose a new holographic model of Josephson junctions (and networks thereof) based on designer multi-gravity, namely multi-(super)gravity theories on products of distinct asymptotically AdS spacetimes coupled by mixed boundary…

高能物理 - 理论 · 物理学 2011-10-07 Elias Kiritsis , Vasilis Niarchos