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Transport and Diamagnetic Properties of 2:2:1:2 and 2:2:2:3 (Bi-Pb)-Sr-Ca-Cu-O Superconducting Materials

  • R. Ibanez (a1), M. J. Sanchis (a1), F. Sapina (a1), D. Beltran (a1), A. Beltran (a1), G.F. De La Fuente (a2), C. Rillo (a2), J. Bartolome (a2), F. Lera (a2) and R. Navarro (a2)...

Abstract

Bismuth superconducting oriented fibers of the compositions 2:2:1:2: and 2:2:2:3 have been grown by the Laser Floating Zone (LFZ) method. Growth conditions have been optimized in order to improve the superconducting properties. The 108 K onset in susceptibility measurements (associated to the 2:2:2:3 phase) only appears well defined when starting from Sr-defective precursors.

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1 Rillo, C., Lera, F., Floria, L.M., Navarro, R., Bartolomé, J., Ibáñez, R., Beltrán, A., Beltrán, D., de la Fuente;, G.F. Solid State. Comm, (in the press).
2 Figelson, R. S., in Hammerling, P., Buggor, A. B. and Pinto, A. (eds.), Tunable Solid State Lasers, Springer Verlag, Heidelberg, 1985, p. 129.
3 Feigelson, R. S., J. Cryst. Growth, 79, 669, (1986).
4 de la Fuente, G.F., Beltrán, D., Ibáñez, R., Martínez, E., Beltrán;, A. J. of the Less Common Met., 150, 253 (1989).
5 Carrillo-Cabrera, W., Göpel, W., de la Fuente, G.F., Verdun, H. R., J. Appl. Phys., 55, 1032 (1989).
6 Beltrán, D., Caldés, M.T., Ibáñez, R., Martínez, E., Escrivá, E., Beltrán, A., Segura, A., Muñoz, V., Martínez, J., J. of the Less Common Met., 150, 247 (1989).

Transport and Diamagnetic Properties of 2:2:1:2 and 2:2:2:3 (Bi-Pb)-Sr-Ca-Cu-O Superconducting Materials

  • R. Ibanez (a1), M. J. Sanchis (a1), F. Sapina (a1), D. Beltran (a1), A. Beltran (a1), G.F. De La Fuente (a2), C. Rillo (a2), J. Bartolome (a2), F. Lera (a2) and R. Navarro (a2)...

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