T. Wada et al, Appl. Phys. Letter, vol. 52 No. 23, 6 Jun. 1988. |
Melt Processed High Temperature Superconductor M. Murakami, World Scientific, 1993. |
SI Yoo et al, Physica C., vol. 210, pp. 147-156 (1993). |
H Llwe et al, Physica C., vol. 153-155, pp. 930-931 (1988). |
K. Takita et al, Physica C, vol. 191, pp. 509-514 (1992). |
Tajima et al "Composition Dependence of the Physical Proporties in the Superconducting y-Ba-Cu-O System" J.J.A.P. vol. 26, No. 5, May 1987 pp. L845-847. |
Greedan et al "Crystal Structure and Superconductivity in the La.sub.1.51x Ba.sub.1.5x Cr.sub.3 Oy System" Mat. Res. Soc. Symp. Proc. vol 99, 1988 pp. 749-752. |
Yong et al "Effects of Substitution in Different Atomic Site in Superconducting YBa.sub.2 Cu.sub.3 O.sub.7 " Physica C 162-164 1989, pp. 47-48. |