Abstract
Superconducting (Tl0.5Pb0.5)(Sr0.8Ba0.2)2Ca2Cu3Oy films with thicknesses from 1 µm to 2 µm were prepared by screen printing of the precursor material on lanthanum aluminate substrates followed by ex situ thallination. Texture analysis confirmed that highly c-axis oriented samples with critical temperatures Tc(0) between 117 and 119 K and with transition widths ÄT(90-10%) of 1 K have been fabricated. The current densities in self-field were above 1.2 x 1010 A m-2 at 77 K. These materials show also excellent current densities in external magnetic fields without the introduction of artificial pinning centers. For H || c jc-values of 4 x 109 A m-2 at 77 K for external fields of 6 T were observed. For H || ab current densities of 1 x 109 A m-2 were still measured at 1 T.
| Original language | English |
|---|---|
| Pages (from-to) | 1592 - 1595 |
| Number of pages | 4 |
| Journal | Superconductor Science and Technology |
| Volume | 15 |
| Publication status | Published - Nov 2002 |
Fields of science
- 104005 Electrochemistry
- 104006 Solid state chemistry
- 104014 Surface chemistry
- 104017 Physical chemistry
- 105113 Crystallography
- 105116 Mineralogy
- 503013 Subject didactics of natural sciences
- 204 Chemical Process Engineering
- 204001 Inorganic chemical technology
- 205016 Materials testing
- 210006 Nanotechnology
- 211104 Metallurgy