Studies of Critical Current Density Enhancement in (Cax Y1−x)Ba2Cu4O8 (1:2:4)

1991 ◽  
Vol 235 ◽  
Author(s):  
P. K. Narwankar ◽  
M. R. Chandrachood ◽  
M. Fendorf ◽  
D. E. Morris ◽  
A. P. B. Sinha ◽  
...  
Keyword(s):  
High Resolution ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Defect Density ◽  
High Density ◽  
Planar Defects ◽  
High Defect Density ◽  
Density Enhancement ◽  
High Resolution Tem

ABSTRACTSamples with the stoichiometry (CaxY1−x)Ba2Cu4O8, x = 0, 0.1 were synthesized at P(O2) = 25 and 200 bar. High Resolution TEM images for the samples synthesized at 25 bar show a high density of planar defects as compared to almost defect free microstructure of Ca0.1Y0.9Ba2Cu4O8 synthesized at 200 bar. The intragrain critical current density of the high defect density samples is however about 100 times lower that that of Ca0.1Y0.9Ba2Cu4O8 synthesized at P(O2) = 200 bar.

Nanostructured templates for critical current density enhancement in YBa2Cu3O7–x films

2020 ◽  
Vol 33 (9) ◽  
pp. 094003
Author(s):  
A Angrisani Armenio ◽  
L Piperno ◽  
T Petrisor ◽  
A Vannozzi ◽  
V Pinto ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Density Enhancement

On the through-thickness critical current density of an YBa2Cu3O7−x film containing a high density of insulating, vortex-pinning nanoprecipitates

2007 ◽  
Vol 90 (25) ◽  
pp. 252502 ◽  
Author(s):  
S. I. Kim ◽  
F. Kametani ◽  
Z. Chen ◽  
A. Gurevich ◽  
D. C. Larbalestier ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
High Density ◽  
Vortex Pinning

Critical Current Density Enhancement around a Matching Field in ErBa2Cu3O7-δFilms with BaZrO3Nano-Rods

2005 ◽  
Vol 44 (No. 30) ◽  
pp. L952-L954 ◽  
Author(s):  
Masashi Mukaida ◽  
Tomoya Horide ◽  
Ryusuke Kita ◽  
Shigeru Horii ◽  
Ataru Ichinose ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Density Enhancement ◽  
Matching Field

Defect size dependence of critical current density enhancement for irradiated YBa2Cu3O7−δ

1992 ◽  
Vol 191 (1-2) ◽  
pp. 199-204 ◽  
Author(s):  
J. Bechtold ◽  
Y.Y. Xue ◽  
Z.J. Huang ◽  
E.V. Hungerford ◽  
P.H. Hor ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Size Dependence ◽  
Defect Size ◽  
Density Enhancement

Critical Current Density Enhancement and Moisture Destruction Studies of the Compound Superconductor Y-Ba-Cu-Ag-O

1987 ◽  
Vol 99 ◽  
Author(s):  
Y. D. Yao ◽  
A. Krol ◽  
Y. H. Krol ◽  
C. Walters ◽  
S. Spagna ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Moisture Treatment ◽  
Density Enhancement ◽  
Order Of Magnitude ◽  
High Transition ◽  
Moisture Conditions ◽  
State Resistance

ABSTRACTWe have fabricated a series of samples of YBa2(Cu1−x Agx)3Oy compounds where 0 ≤ × ≤ 1, with the intention to study the changes in critical current density and the effect of moisture treatment on normal state resistance R in these high transition-temperature superconductors. The samples exhibited a decrease of the transition-temperature Tc vs the Ag concentration x. Tc is about 93 K for YBa2Cu3Oy and 20 KCfor YBa2Ag3Oy, but it is almost unaffected by the presence or Ag for × < 0.2. An enhancement of the critical current density Jc by nearly an order of magnitude for the samples with 0 < × ≤ 0.1 has been observed. Both Jc and R are found to be sensitive to the ambient moisture conditions.

Strong critical current density enhancement in NiCu/NbN superconducting nanostripes for optical detection

2010 ◽  
Vol 97 (9) ◽  
pp. 092504 ◽  
Author(s):  
N. Marrocco ◽  
G. P. Pepe ◽  
A. Capretti ◽  
L. Parlato ◽  
V. Pagliarulo ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Optical Detection ◽  
Density Enhancement

Critical current density enhancement in YBa2Cu3O6.8films on buffered metallic substrates

1991 ◽  
Vol 58 (11) ◽  
pp. 1202-1204 ◽  
Author(s):  
E. Narumi ◽  
L. W. Song ◽  
F. Yang ◽  
S. Patel ◽  
Y. H. Kao ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Metallic Substrates ◽  
Density Enhancement

scholarly journals Large and significantly anisotropic critical current density induced by planar defects in CaKFe4As4 single crystals

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Sunseng Pyon ◽  
Ayumu Takahashi ◽  
Ivan Veshchunov ◽  
Tsuyoshi Tamegai ◽  
Shigeyuki Ishida ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Single Crystals ◽  
Critical Current ◽  
Current Density ◽  
Planar Defects
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