Flux pinning characteristics of YBCO: NaNbO3 by introducing artificial pinning centers with different morphology

2021 ◽  
Author(s):  
Mamta Dahiya ◽  
Rohit Kumar ◽  
Dheeraj Kumar ◽  
Alok K. Jha ◽  
Neeraj Khare
Keyword(s):  
Flux Pinning ◽  
Pinning Centers ◽  
Artificial Pinning Centers

Flux Pinning Characteristics of Artificial Pinning Centers With Different Dimension

2009 ◽  
Vol 19 (3) ◽  
pp. 3248-3253 ◽  
Author(s):  
K. Matsumoto ◽  
P. Mele ◽  
A. Ichinose ◽  
M. Mukaida ◽  
Y. Yoshida ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Centers ◽  
Artificial Pinning Centers

Flux Pinning Mechanism of High-TcY–Ba–Cu–O Superconductor Containing Artificial Pinning Centers Y2BaCuO5

1993 ◽  
Vol 62 (3) ◽  
pp. 1006-1016 ◽  
Author(s):  
Kenichi Tenya ◽  
Hideki Miyajima ◽  
Yoshichika Otani ◽  
Yuuichi Ishikawa ◽  
Shuichi Kohayashi ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Mechanism ◽  
Pinning Centers ◽  
Artificial Pinning Centers

Flux pinning in multifilamentary superconducting wires with ferromagnetic artificial pinning centers

1997 ◽  
Vol 7 (2) ◽  
pp. 1130-1133 ◽  
Author(s):  
J.-Q. Wang ◽  
N.D. Rizzo ◽  
D.E. Prober ◽  
L.R. Motowidlo ◽  
B.A. Zeitlin
Keyword(s):  
Flux Pinning ◽  
Pinning Centers ◽  
Superconducting Wires ◽  
Artificial Pinning Centers

Flux pinning characteristics of superconducting Nb films with asymmetric artificial pinning centers introduced by microfabrication

2008 ◽  
Vol 468 (15-20) ◽  
pp. 1661-1665 ◽  
Author(s):  
J. He ◽  
N. Harada ◽  
H. Naitou ◽  
H. Asada ◽  
T. Ishibashi ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Centers ◽  
Artificial Pinning Centers

The stability of dislocation networks under various oxygen-doping conditions in superconducting Bi2Sr2CaCu2Oy single crystals and their influence on the flux pinning properties

1994 ◽  
Vol 52 ◽  
pp. 802-803
Author(s):  
Y. Feng ◽  
X. Y. Cai ◽  
R. J. Kelley ◽  
D. C. Larbalestier
Keyword(s):  
Single Crystals ◽  
Oxygen Content ◽  
Basal Plane ◽  
Flux Pinning ◽  
Pinning Centers ◽  
Before And After ◽  
Anomalous Peak ◽  
Basal Plane Dislocation ◽  
The Stability ◽  
Further Development

The issue of strong flux pinning is crucial to the further development of high critical current density Bi-Sr-Ca-Cu-O (BSCCO) superconductors in conductor-like applications, yet the pinning mechanisms are still much debated. Anomalous peaks in the M-H (magnetization vs. magnetic field) loops are commonly observed in Bi2Sr2CaCu2Oy (Bi-2212) single crystals. Oxygen vacancies may be effective flux pinning centers in BSCCO, as has been found in YBCO. However, it has also been proposed that basal-plane dislocation networks also act as effective pinning centers. Yang et al. proposed that the characteristic scale of the basal-plane dislocation networksmay strongly depend on oxygen content and the anomalous peak in the M-H loop at ˜20-30K may be due tothe flux pinning of decoupled two-dimensional pancake vortices by the dislocation networks. In light of this, we have performed an insitu observation on the dislocation networks precisely at the same region before and after annealing in air, vacuumand oxygen, in order to verify whether the dislocation networks change with varying oxygen content Inall cases, we have not found any noticeable changes in dislocation structure, regardless of the drastic changes in Tc and the anomalous magnetization. Therefore, it does not appear that the anomalous peak in the M-H loops is controlled by the basal-plane dislocation networks.

scholarly journals Artificial pinning centers using the barrier layer of ordered nanoporous alumina templates

2009 ◽  
Vol 153 ◽  
pp. 012013
Author(s):  
X Hallet ◽  
S Mátéfi-Tempfli ◽  
M Mátéfi-Tempfli ◽  
S Michotte ◽  
L Piraux ◽  
...  
Keyword(s):  
Barrier Layer ◽  
Pinning Centers ◽  
Nanoporous Alumina ◽  
Artificial Pinning Centers ◽  
Nanoporous Alumina Templates

Sequential vortex hopping in an array of artificial pinning centers

2009 ◽  
Vol 80 (16) ◽  
Author(s):  
J. C. Keay ◽  
P. R. Larson ◽  
K. L. Hobbs ◽  
M. B. Johnson ◽  
J. R. Kirtley ◽  
...  
Keyword(s):  
Pinning Centers ◽  
Artificial Pinning Centers

Engineered flux-pinning centers in Bi2Sr2CaCu2Ox and TIBa2Ca2Cu3Ox superconductors

1995 ◽  
Vol 24 (12) ◽  
pp. 1961-1966 ◽  
Author(s):  
K. C. Goretta ◽  
V. R. Todt ◽  
D. J. Miller ◽  
M. T. Lanagan ◽  
Y. L. Chen ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Centers
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