We propose that a device composed of two vertically stacked monolayer graphene Josephson junctions can be used for Cooper pair splitting. The hybridization the Andreev bound states junction facilitate non-local transport in this normal-superconductor hybrid structure, which we study by calculating differential conductance. Assuming one layers is electron and other hole doped, find reflection do...

Long-term behavior of solutions of the equation ˙ φ + sin φ = f with periodic f and the modeling of dynamics of overdamped Josephson junctions: Unlectured notes Abstract The method of efficient description of long-term behavior of solutions of the non-linear first order ODE ˙ φ + sin φ = f for arbitrary periodic f is discussed. The criterion enabling one to separate and identify the qualitative...

We study a phase dynamics induced by a spin dynamics in a ferromagnetic Josephson junction, in which two superconductors (SC’s) are separated by a ferromagnetic layer. A new phenomenological model for the phase variable is proposed by including the spin dynamics excited by the ferromagnetic resonance (FMR) in the gauge invariant phase of s-wave SC’s. We found that the current-voltage characteri...

We derive, via fourth order perturbation theory, an expression for the Josephson current through a gated interacting quantum dot. We analyze our expression for two different models of the superconductor-dot-superconductor (SDS) system. When the matrix elements connecting dot and leads are featureless constants, we compute the Josephson coupling Jc as a function of the gate voltage and Coulomb i...

Typically, topological superconductivity is reachable via proximity effect by a direct deposition of superconductor (S) on top insulator (TI) surface. Here we observed and analyzed the double critical current in Josephson junctions based fabricated planar Superconducting Quantum Interference Device. By measuring currents as function temperature magnetic field, show that second stems from intrin...

Abstract This Review examines methods to model Josephson devices such as arrays of superconducting quantum interference (SQUIDs) and rows within two-dimensional filters or SQIFs. The emphasis is on high temperature (HTS) devices, though the techniques apply for any operating temperature. use freely-available proven software first extract all self mutual inductances thin-film device, then incorp...

We argue that the vacuum polarization by the virtual electron-positron pairs can be measured by studying a Josephson junction in a strong magnetic field. The vacuum polarization results in a weak dependence of the Josephson constant on the magnetic field strength which is within the reach of the existing experimental techniques.

We propose that with ultracold Fermi gases one can realize a spin-asymmetric Josephson effect in which the two spin components of a Cooper pair are driven asymmetrically--corresponding to driving a Josephson junction of two superconductors with different voltages V(↑) and V(↓) for spin up and down electrons, respectively. We predict that the spin up and down components oscillate at the same fre...

We investigate, by experiments and numerical simulations, thermal activation processes of Josephson tunnel junctions in the presence of microwave radiation. When the applied signal resonates with the Josephson plasma frequency oscillations, the switching current may become multivalued in a temperature range far exceeding the classical to quantum crossover temperature. Plots of the switching cur...

2014 Impedance properties of a waveguide TM-mode near cut-off are demonstrated to improve Josephson junction coupling to the waveguide. Revue Phys. Appl. 20 (1985) 215-217 MARS 1985, PAGE Classification Physics Abstracts 74.50 4l.lOH It is generally recognized that the experimentally observed weak coupling of a Josephson tunnel junction to the external world is caused by the considerable impeda...