Critical current behaviour of YBCO thin films described by vortex pinning on low-angle domain boundaries and vortex creep

2012 ◽  
Vol 479 ◽  
pp. 151-153 ◽  
Author(s):  
I.A. Golovchanskiy ◽  
A.V. Pan ◽  
S.A. Fedoseev ◽  
O.V. Shcherbakova ◽  
S.X. Dou
Keyword(s):  
Thin Films ◽  
Critical Current ◽  
Vortex Pinning ◽  
Ybco Thin Films ◽  
Domain Boundaries ◽  
Current Behaviour

scholarly journals Enhanced flux pinning isotropy by tuned nanosized defect network in superconducting YBa2Cu3O6+x films

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mukarram Zaman Khan ◽  
Elmeri Rivasto ◽  
Jussi Tikkanen ◽  
Hannes Rijckaert ◽  
Mika Malmivirta ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current ◽  
Flux Pinning ◽  
Md Simulation ◽  
Film Growth ◽  
Quantitative Model ◽  
Vortex Pinning ◽  
Dopant Content ◽  
Ybco Thin Films ◽  
Pinning Properties

Abstract Striving to improve the critical current density Jc of superconducting YBa2Cu3O6+x (YBCO) thin films via enhanced vortex pinning, the interplay between film growth mechanisms and the formation of nanosized defects, both natural and artificial, is systematically studied in undoped and BaZrO3 (BZO)-doped YBCO thin films. The films were grown via pulsed laser deposition (PLD), varying the crystal grain size of the targets in addition to the dopant content. The microstructure of the PLD target has been observed to have a great impact on that of the deposited thin films, including the formation of vortex pinning centers, which has direct implications on the superconducting performance, especially on the isotropy of flux pinning properties. Based on experimentally measured angular dependencies of Jc, coupled with a molecular dynamics (MD) simulation of flux pinning in the YBCO films, we present a quantitative model of how the splay and fragmentation of BZO nanorods artifically introduced into the YBCO film matrix explain the majority of the observed critical current anisotropy.

Angular dependences of critical current density in YBCO thin films with crossed columnar defects

2010 ◽  
Vol 470 (20) ◽  
pp. 1295-1299 ◽  
Author(s):  
T. Sueyoshi ◽  
S. Yutani ◽  
T. Sogo ◽  
K. Yonekura ◽  
A. Adachi ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Ybco Thin Films ◽  
Columnar Defects

Resistivity and critical current anisotropy of untwinned a-axis YBCO thin films

1997 ◽  
Vol 7 (2) ◽  
pp. 1636-1641 ◽  
Author(s):  
Z. Trajanovic ◽  
I. Takeuchi ◽  
C.J. Lobb ◽  
T. Venkatesan ◽  
P.A. Warburton
Keyword(s):  
Thin Films ◽  
Critical Current ◽  
Ybco Thin Films

Critical Current Density of HTS Single Crystal YBCO Thin Films in Applied dc Field

2005 ◽  
Vol 15 (2) ◽  
pp. 2783-2786 ◽  
Author(s):  
Y.V. Cherpak ◽  
V.A. Komashko ◽  
S.A. Pozigun ◽  
A.V. Semenov ◽  
C.G. Tretiatchenko ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Single Crystal ◽  
Critical Current ◽  
Current Density ◽  
Ybco Thin Films

Anisotropy of the critical current in YBCO thin films grown by metal organic chemical vapour deposition

1997 ◽  
Vol 251 (1-2) ◽  
pp. 351-354 ◽  
Author(s):  
C. Dubourdieu ◽  
O. Lebedev ◽  
G. Delabouglise ◽  
F. Weiss ◽  
U. Schmatz ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Organic Chemical ◽  
Ybco Thin Films ◽  
Metal Organic

Relationship between intrinsic surface resistance and critical current density of YBCO thin films with various thickness

2010 ◽  
Vol 470 (20) ◽  
pp. 1361-1364 ◽  
Author(s):  
K. Nakagawa ◽  
S. Nakayama ◽  
A. Saito ◽  
S. Ono ◽  
H. Kai ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Surface Resistance ◽  
Ybco Thin Films
Sign in / Sign up

Export Citation Format

Share Document