Superconducting films of the high-T~ compound Bi2Sr2CaCu2Os+y have been grown on (lll)-oriented gadolinium gallium garnet substrates by a liquid-phase technique, The films show a very high degree of preferential orientation with the c-axis perpendicular to the substrates. The onset of the resistive transition was 85 K while zero resistance was obtained at 78 K. Results concerning the critical current properties of the films are described. Measurements of the paraconductivity effects on the electrical resistivity above the superconducting transition due to thermodynamic fluctuations are also reported.
TRANSPORT-PROPERTIES OF TEXTURED BI2SR2CACU2O8+Y THIN-FILMS
BALESTRINO, GMembro del Collaboration Group
;CANNAVACCIUOLO, MMembro del Collaboration Group
;MARITATO, LMembro del Collaboration Group
;NIGRO, AMembro del Collaboration Group
;VAGLIO, RMembro del Collaboration Group
;
1990
Abstract
Superconducting films of the high-T~ compound Bi2Sr2CaCu2Os+y have been grown on (lll)-oriented gadolinium gallium garnet substrates by a liquid-phase technique, The films show a very high degree of preferential orientation with the c-axis perpendicular to the substrates. The onset of the resistive transition was 85 K while zero resistance was obtained at 78 K. Results concerning the critical current properties of the films are described. Measurements of the paraconductivity effects on the electrical resistivity above the superconducting transition due to thermodynamic fluctuations are also reported.File in questo prodotto:
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