Analysis of the critical current density in grain boundary Josephson junctions on a nanometer scale

1995 ◽  
Vol 66 (17) ◽  
pp. 2289-2291 ◽  
Author(s):  
O. M. Froehlich ◽  
H. Schulze ◽  
A. Beck ◽  
B. Mayer ◽  
L. Alff ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Josephson Junctions ◽  
Nanometer Scale

Facet Topography and Dislocation Structure as a Possible Source for Electrical Heterogeneity in [001] TILT Bicrystals of YBa2Cu3O7-δ

1996 ◽  
Vol 54 ◽  
pp. 338-339
Author(s):  
I-Fei Tsu ◽  
D.L. Kaiser ◽  
S.E. Babcock
Keyword(s):  
Grain Boundary ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Electromagnetic Properties ◽  
Length Scale ◽  
Density Values ◽  
Current Densities ◽  
Applied Fields ◽  
A Current

A current theme in the study of the critical current density behavior of YBa2Cu3O7-δ (YBCO) grain boundaries is that their electromagnetic properties are heterogeneous on various length scales ranging from 10s of microns to ˜ 1 Å. Recently, combined electromagnetic and TEM studies on four flux-grown bicrystals have demonstrated a direct correlation between the length scale of the boundaries’ saw-tooth facet configurations and the apparent length scale of the electrical heterogeneity. In that work, enhanced critical current densities are observed at applied fields where the facet period is commensurate with the spacing of the Abrikosov flux vortices which must be pinned if higher critical current density values are recorded. To understand the microstructural origin of the flux pinning, the grain boundary topography and grain boundary dislocation (GBD) network structure of [001] tilt YBCO bicrystals were studied by TEM and HRTEM.

scholarly journals Maximum supercurrent in Josephson junctions with alternating critical current density

2007 ◽  
Vol 76 (17) ◽  
Author(s):  
Maayan Moshe ◽  
C. W. Schneider ◽  
G. Bensky ◽  
R. G. Mints
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Josephson Junctions

Phase dynamics of low critical current density YBCO Josephson junctions

2014 ◽  
Vol 503 ◽  
pp. 113-119
Author(s):  
D. Massarotti ◽  
D. Stornaiuolo ◽  
G. Rotoli ◽  
F. Carillo ◽  
L. Galletti ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Josephson Junctions ◽  
Phase Dynamics

Increased grain boundary critical current density Jcgb by Pr-doping in pulsed laser–deposited Y1−xPrxBCO thin films

2011 ◽  
Vol 110 (11) ◽  
pp. 113905 ◽  
Author(s):  
M. Irjala ◽  
H. Huhtinen ◽  
V. P. S. Awana ◽  
M. Falter ◽  
P. Paturi
Keyword(s):  
Thin Films ◽  
Grain Boundary ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Pulsed Laser

Improvement of Critical Current Density Uniformity for Interface-Modified Josephson Junctions in Single Flux Quantum Circuits

2006 ◽  
Vol 45 (No. 4) ◽  
pp. L105-L107 ◽  
Author(s):  
Hironori Wakana ◽  
Seiji Adachi ◽  
Yoshinobu Tarutani ◽  
Koji Tsubone ◽  
Kohei Nakayama ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Josephson Junctions ◽  
Quantum Circuits ◽  
Flux Quantum
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