Abstract
Superconducting (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oz films were prepared on highly polished, untextured silver substrates. A superconducting transition temperature (Tc) of 116.9 +- 0.1 K was obtained from the resistivity vs temperature measurements for different applied ac currents. The temperature dependence of the critical current was fitted with a power law: Jc(T)=Jc(0)[1-T/Tc]n with n = 2. The critical current in self-field at 77 K was found to be 8 x 103 A / cm2. The temperature dependence of the real and imaginary parts of ac susceptibility was measured for different amplitudes of ac magnetic field. Only a small differences of the ac susceptibility for parallel and perpendicular fields with respect to the film surface were observed.
| Original language | English |
|---|---|
| Pages (from-to) | 209 - 212 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 442 |
| Publication status | Published - 2007 |
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