EFFECTS OF SB-INCORPORATION ON THE 2223 PHASE IN THE SUPERCONDUCTING BI-PB-SR-CA-CU-O SYSTEM

被引：0

作者：

KIM, SH

LEE, DH

PARK, JS

CHO, SK

LEE, SH

KIM, KH

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BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 1994年 / 15卷 / 02期

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O6 [化学];

学科分类号：

0703 ;

摘要：

Samples of (Bi2-xSbx)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-0 2p band and/or to the low volume fraction of the 2223 phase.

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页码：115 / 118

页数：4

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