Current time in Korea 08:44 Nov 29 (Sun) Year 2020 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 2
BKCSDE 15(2)
February 20, 1994 

Effects of Sb-Incorporation on the 2223 Phase in the Superconducting Bi-Pb-Sr-Ca-Cu-O System
Seong Han Kim, Dong Hoon Lee, Jong Sik Park, Seung Koo Cho, Sung Han Lee, Keu Hong Kim*
Samples of (Bi2-x,Sbx)PbSr2Ca2Cu3Oy, compositions with x=0.0, 0.1, and 0.2 were prepared by solid-state reaction. The solubility of Sb into the 2223 phase is lower than 0.05 for the ratio of Sb/Bi. The lack of stability of the Sb-substituted Bi2O2 double layers is likely to cause the solubility low. There is no great dependence of lattice parameters on the Sb-content, and bonds around the square-pyramidal Cu atom are not affected by the Sb3+ ion substituted. The superconducting transition temperature of this system is decreased gradually with increase of Sb, which is tentatively attributable to the perturbation of the Bi 6p-O 2p band and/or to the low volume fraction of the 2223 phase.
115 - 118
Full Text