Two-dimensional computer analysis of current-phase relations in microbridge josephson junction

1980 ◽  
Vol 63 (4) ◽  
pp. 100-105
Author(s):  
Shigeyuki Sakura ◽  
Mitsuo Kawamuras
Keyword(s):  
Josephson Junction ◽  
Computer Analysis ◽  
Phase Relations ◽  
Current Phase ◽  
Two Dimensional

scholarly journals An ideal Josephson junction in an ultracold two-dimensional Fermi gas

Science ◽  
2020 ◽  
Vol 369 (6499) ◽  
pp. 89-91 ◽  
Author(s):  
Niclas Luick ◽  
Lennart Sobirey ◽  
Markus Bohlen ◽  
Vijay Pal Singh ◽  
Ludwig Mathey ◽  
...  
Keyword(s):  
Josephson Junction ◽  
High Temperature Superconductors ◽  
Fermi Gas ◽  
Current Phase ◽  
Strongly Correlated ◽  
Two Dimensional ◽  
Weakly Bound ◽  
Ideal Model System ◽  
Sinusoidal Current ◽  
2D Fermi Gas

The role of reduced dimensionality in high-temperature superconductors is still under debate. Recently, ultracold atoms have emerged as an ideal model system to study such strongly correlated two-dimensional (2D) systems. Here, we report on the realization of a Josephson junction in an ultracold 2D Fermi gas. We measure the frequency of Josephson oscillations as a function of the phase difference across the junction and find excellent agreement with the sinusoidal current phase relation of an ideal Josephson junction. Furthermore, we determine the critical current of our junction in the crossover from tightly bound molecules to weakly bound Cooper pairs. Our measurements clearly demonstrate phase coherence and provide strong evidence for superfluidity in a strongly interacting 2D Fermi gas.

Current-Phase Relation in Josephson Junctions with Complex Ferromagnetic/Normal Metal Interlayers

2012 ◽  
Vol 190 ◽  
pp. 401-404 ◽  
Author(s):  
S. V. Bakurskiy ◽  
N. V. Klenov ◽  
T. Yu. Karminskaya ◽  
M. Yu. Kupriyanov ◽  
V. K. Kornev
Keyword(s):  
Boundary Problem ◽  
Phase Relation ◽  
Josephson Junctions ◽  
Nonlinear Boundary ◽  
Phase Relations ◽  
Normal Metal ◽  
Current Phase ◽  
Two Dimensional ◽  
Nonlinear Boundary Problem ◽  
Usadel Equation

In the frame of Usadel equation the two-dimensional nonlinear boundary problem for heterostructures with complex ferromagnetic (F)/normal metal (N) interlayer has been solved numerically for arbitrary values of electrodes spacing L, thickness dN and dF of N and F films. We calculate the current-phase relations for ramp-type S-NF-S and overlap-type SFN-FN-NFS junctions. We have found the range of parameters providing an opportunity for realization of Josephson φ-junction based on the considered structures.

Persistence and coexistence of infinite attractors in a fractal Josephson junction resonator with unharmonic current phase relation considering feedback flux effect

2021 ◽  
Vol 103 (2) ◽  
pp. 1979-1998
Author(s):  
Anitha Karthikeyan ◽  
Murat Erhan Cimen ◽  
Akif Akgul ◽  
Ali Fuat Boz ◽  
Karthikeyan Rajagopal
Keyword(s):  
Josephson Junction ◽  
Phase Relation ◽  
Current Phase ◽  
Fractal Josephson Junction

Direct Measurement of Current-Phase Relations in Superconductor/Topological Insulator/Superconductor Junctions

Nano Letters ◽  
2013 ◽  
Vol 13 (7) ◽  
pp. 3086-3092 ◽  
Author(s):  
Ilya Sochnikov ◽  
Andrew J. Bestwick ◽  
James R. Williams ◽  
Thomas M. Lippman ◽  
Ian R. Fisher ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Topological Insulator ◽  
Phase Relations ◽  
Current Phase

Dissipation-Driven Superconductor-Insulator Transition in a Two-Dimensional Josephson-Junction Array

1997 ◽  
Vol 78 (13) ◽  
pp. 2632-2635 ◽  
Author(s):  
A. J. Rimberg ◽  
T. R. Ho ◽  
Ç. Kurdak ◽  
John Clarke ◽  
K. L. Campman ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Insulator Transition ◽  
Two Dimensional ◽  
Josephson Junction Array ◽  
Junction Array ◽  
Superconductor Insulator Transition
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