Superconductivity up to 114 K in the Bi-Al-Ca-Sr-Cu-O compound system without rare-earth elements

C. W. Chu; J. Bechtold; L. Gao; P. H. Hor; Z. J. Huang; R. L. Meng; Y. Y. Sun; Y. Q. Wang; Y. Y. Xue

doi:10.1103/PhysRevLett.60.941

Superconductivity up to 114 K in the Bi-Al-Ca-Sr-Cu-O compound system without rare-earth elements

C. W. Chu, J. Bechtold, L. Gao, P. H. Hor, Z. J. Huang, R. L. Meng, Y. Y. Sun, Y. Q. Wang, and Y. Y. Xue

Phys. Rev. Lett. 60, 941 – Published 7 March 1988

Abstract

Stable superconductivity up to 114 K has been reproducibly detected in Bi-Al-Ca-Sr-Cu-O multiphase systems without any rare-earth elements. Pressure has only a slight positive effect on $T_{c}$ . These observations provide an extra material base for the study of the mechanism of high-temperature superconductivity and also the prospect of reduced material cost for future applications of superconductivity.