scholarly journals Comparison of Temperature and Field Dependencies of the Critical Current Densities of Bulk YBCO, MgB $_2$ , and Iron-Based Superconductors

2019 ◽  
Vol 29 (5) ◽  
pp. 1-5 ◽  
Author(s):  
Anjela Koblischka-Veneva ◽  
Michael R. Koblischka ◽  
Kevin Berger ◽  
Quentin Nouailhetas ◽  
Bruno Douine ◽  
...  
Keyword(s):  
Critical Current ◽  
Iron Based Superconductors ◽  
Bulk Ybco ◽  
Current Densities ◽  
Iron Based

scholarly journals Bulk YBCO with discontinuous irradiation defects: Bose-glass behaviour and very high critical current densities

2008 ◽  
Vol 97 ◽  
pp. 012080 ◽  
Author(s):  
G Fuchs ◽  
K Nenkov ◽  
G Krabbes ◽  
L Shlyk ◽  
R Weinstein ◽  
...  
Keyword(s):  
Critical Current ◽  
Bulk Ybco ◽  
Bose Glass ◽  
Current Densities ◽  
Very High

Evaluation of global and local critical current densities in 122-type iron-based superconducting tapes

2016 ◽  
Vol 530 ◽  
pp. 76-78 ◽  
Author(s):  
Sunseng Pyon ◽  
Akinori Mine ◽  
Takahiro Suwa ◽  
Tsuyoshi Tamegai
Keyword(s):  
Critical Current ◽  
Superconducting Tapes ◽  
Current Densities ◽  
Iron Based ◽  
Global And Local

scholarly journals A route for a strong increase of critical current in nanostrained iron-based superconductors

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Toshinori Ozaki ◽  
Lijun Wu ◽  
Cheng Zhang ◽  
Jan Jaroszynski ◽  
Weidong Si ◽  
...  
Keyword(s):  
Critical Current ◽  
Strong Increase ◽  
Iron Based Superconductors ◽  
Iron Based

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.

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