Results 21 to 30 of about 69,087 (236)

Double-Fourier engineering of Josephson energy-phase relationships applied to diodes

SciPost Physics, 2023
We present a systematic method to design arbitrary energy-phase relations using parallel arms of two series Josephson tunnel junctions each. Our approach employs Fourier engineering in the energy-phase relation of each arm and the position of the arms in
A. Mert Bozkurt, Jasper Brookman, Valla Fatemi, Anton R. Akhmerov
doaj   +1 more source

Phase-tunable thermoelectricity in a Josephson junction

Physical Review Research, 2020
Superconducting tunnel junctions constitute the units of superconducting quantum circuits and are massively used both for quantum sensing and quantum computation.
G. Marchegiani, A. Braggio, F. Giazotto
doaj   +1 more source

Josephson tunnel junction microwave attenuator [PDF]

Applied Physics Letters, 1993
A new element for superconducting electronic circuitry—a variable attenuator—has been proposed, designed, and successfully tested. The principle of operation is based on the change in the microwave impedance of a superconductor-insulator-superconductor (SIS) Josephson tunnel junction when dc biased at different points in the current-voltage ...
Koshelets, V. P., Shitov, S. V., Shchukin, A. V., Baryshev, A. M., Filippenko, L. V., Fischer, Gerd Michael, Mygind, Jesper   +6 more
openaire   +2 more sources

Manipulation and Generation of Supercurrent in Out-of-Equilibrium Josephson Tunnel Nanojunctions [PDF]

, 2008
We demonstrate experimentally manipulation of supercurrent in Al-AlO_x-Ti Josephson tunnel junctions by injecting quasiparticles in a Ti island from two additional tunnel-coupled Al superconducting reservoirs.
A. M. Savin, C. Pascual Garcia, F. Beltram, F. Giazotto, J. P. Pekola, N. B. Kopnin, S. Tirelli, Yu. M. Ivanchenko   +7 more
core   +2 more sources

Engineering double-well potentials with variable-width annular Josephson tunnel junctions [PDF]

Journal of Physics: Condensed Matter, 2016
Long Josephson tunnel junctions are non-linear transmission lines that allow propagation of current vortices (fluxons) and electromagnetic waves and are used in various applications within superconductive electronics.
R. Monaco
semanticscholar   +1 more source

Superelliptic Josephson Tunnel Junctions [PDF]

Journal of Low Temperature Physics, 2017
The most important practical characteristic of a Josephson junction is its critical current. The shape of the junction determines the specific form of the magnetic-field dependence of the its Josephson current. Here we address the magnetic diffraction patterns of specially shaped planar Josephson tunnel junctions.
openaire   +3 more sources

Atomic-Layer Engineering of La_2−xSr_xCuO₄—La_2−xSr_xZnO₄ Heterostructures

Nanomaterials, 2023
The fabrication of trilayer superconductor-insulator-superconductor (SIS) Josephson junctions with high-temperature superconductor (HTS) electrodes requires atomically perfect interfaces.
Xiaotao Xu, Xi He, Anthony T. Bollinger, Xiaoyan Shi, Ivan Božović   +4 more
doaj   +1 more source

Low barrier ZrOx-based Josephson junctions [PDF]

APL Materials
The Josephson junction is a crucial element in superconducting devices, and niobium is a promising candidate for the superconducting material due to its large energy gap relative to aluminum.
Jaehong Choi, Maciej Olszewski, Luojia Zhang, Zhaslan Baraissov, Tathagata Banerjee, Kushagra Aggarwal, Sarvesh Chaudhari, Tomás A. Arias, David A. Muller, Valla Fatemi, Gregory D. Fuchs   +10 more
doaj   +1 more source

Magnifying Quantum Phase Fluctuations with Cooper-Pair Pairing

Physical Review X, 2022
Remarkably, complex assemblies of superconducting wires, electrodes, and Josephson junctions are compactly described by a handful of collective phase degrees of freedom that behave like quantum particles in a potential.
W. C. Smith, M. Villiers, A. Marquet, J. Palomo, M. R. Delbecq, T. Kontos, P. Campagne-Ibarcq, B. Douçot, Z. Leghtas   +8 more
doaj   +1 more source

Soliton Excitations In Josephson Tunnel Junctions [PDF]

Physical Review B, 1983
A detailed numerical study of a sine-Gordon model of the Josephson tunnel junction is compared with experimental measurements on junctions with different L/λ J ratio. The soliton picture is found to apply well on both relative long (L/λ J = 6) and intermediate (L/λ J . = 2) junctions.
Lomdahl, P. S., Sørensen, O. H., Christiansen, Peter Leth   +2 more
openaire   +3 more sources