Critical currents of (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oy films on silver substrates
Sprache des Titels:
Englisch
Original Kurzfassung:
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.
Sprache der Kurzfassung:
Englisch
Englische Kurzfassung:
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.
Journal:
Journal of Alloys and Compounds
Volume:
442
Seitenreferenz:
209 - 212
Erscheinungsjahr:
2007
ISSN:
0925-8388
Anzahl der Seiten:
4
Notiz zur Publikation:
Critical currents of (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oy films on silver substrates
W. M. Woch, R. Zalecki, A. Kołodziejczyk, C. Deinhofer, G. Gritzner
J. Alloys Compd., 442 (2007) 209 – 212
Forschungs-