MAGNETO-OPTIC IMAGING OF PROTON-IRRADIATED HIGH Tc SUPERCONDUCTING THIN FILMS: A REVISIT OF Jc(T) FUNCTIONAL AND FLUX PINNING ENHANCEMENT

2001 ◽  
Vol 15 (24n25) ◽  
pp. 3357-3358
Author(s):  
Chong Wang ◽  
Hye-Won Seo ◽  
Chun-Jung Su ◽  
Yuh-Huah Wang ◽  
Q. Y. Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
External Field ◽  
Critical Current Density ◽  
Current Density ◽  
Flux Pinning ◽  
Ybco Film ◽  
Superconducting Thin Films ◽  
High Tc ◽  
Quantitative Measurements

We have performed systematic quantitative measurements of the critical current density Jc(B, T) for YBCO thin films proton-irradiated to various dosages using the MOI technique. Results for external magnetic fields up to 400Oe and temperature ranging from 5 to 80K are presented for a 600nm thick YBCO film irradiated by proton up to a dosage of 1016 cm -2 at 500 keV. While no significant differences were observed for T>50K, the Jc values consistently increased with the increasing external field for T<50K.

Critical current density and flux pinning in Gd1−xYxBa2Cu3O7−y epitaxial thin films

1995 ◽  
Vol 250 (1-2) ◽  
pp. 55-58 ◽  
Author(s):  
R.L. Wang ◽  
H.C. Li ◽  
B. Yin ◽  
J.W. Li ◽  
X.S. Ron ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Flux Pinning ◽  
Epitaxial Thin Films

Enhancement of critical current density in direct‐current‐sputtered TlBa2Ca2Cu3O9±δ superconducting thin films

1995 ◽  
Vol 66 (7) ◽  
pp. 885-887 ◽  
Author(s):  
J. Y. Juang ◽  
J. H. Horng ◽  
S. P. Chen ◽  
C. M. Fu ◽  
K. H. Wu ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Critical Current ◽  
Direct Current ◽  
Current Density ◽  
Superconducting Thin Films

Columnar tilt and vortex stress in superconducting thin films of NdBa2Cu3O7−δ: Magnetization critical current-density measurements

2004 ◽  
Vol 96 (12) ◽  
pp. 7403-7406 ◽  
Author(s):  
Sanghamitra Khatua ◽  
P. K. Mishra ◽  
Ravi Kumar ◽  
D. C. Kundaliya ◽  
D. Buddhikot ◽  
...  
Keyword(s):  
Thin Films ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Thin Films ◽  
Density Measurements

HIGH-QUALITY Tl2Ba2Ca2Cu3O10 THIN FILMS FABRICATED VIA LASER ABLATION

1993 ◽  
Vol 07 (01) ◽  
pp. 19-23 ◽  
Author(s):  
W. A. LUO ◽  
Y. Q. TANG ◽  
Y. Z. CHEN ◽  
I. N. CHAN ◽  
K. Y. CHEN ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Critical Current Density ◽  
Current Density ◽  
Superconducting Thin Films ◽  
X Ray Diffraction ◽  
High Quality ◽  
Step Process ◽  
X Ray ◽  
Zero Resistance

In this letter, we describe results obtained via laser ablation to fabricate Tl 2 Ba 2 Ca 2 Cu 3- O 10 superconducting thin films using a two-step process. We found that the zero-resistance temperatures are up to 121 K, while the onset temperatures are up to 125 K. The T c and J c are mainly determined by a non-contact new technique for high-T c films. The typical critical current density, J c , is about 106 A/cm 2 at 77 K. X-ray diffraction showed that the superconducting thin films are nearly single 2223 phase and are highly oriented.

Sign in / Sign up

Export Citation Format

Share Document