The effect of 5% Sb doping on high Tc superconductivity in (Bi,Pb)2Sr2Ca2Cu3Oy compound

被引：5

作者：

Siddiqi, SA ^{[1
]}

Akhtar, B

Ghauri, IM

机构：

[1] Univ Punjab, Ctr Solid State Phys, Lahore 54590, Pakistan

[2] GC Univ, Ctr Adv Studies Phys, Lahore, Pakistan

来源：

MODERN PHYSICS LETTERS B | 2003年 / 17卷 / 5-6期

关键词：

High-T-c superconductivity; substitution; sintering; X-ray diffraction; electrical resistivity; critical current;

D O I：

10.1142/S0217984903005081

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of a small amount of Sb doping (5%) on the formation of the high temperature superconducting phase has been investigated on the Bi1.5Pb0.5Sr2Ca2Cu3Oy, value depends on the sinter-compound. It is observed that at 860degreesC the T-c zero (T-c(0)) ing time. It first increases to a maximum value of 96 K and then decreases to a stable lowest value of 88 K. The samples have been characterized by X-ray diffraction (XRD), four probe electrical resistance and current density measurements. The XRD revealed the presence of two phases: an orthorhombic high-T-c 2223 phases with lattice constants a = 5.395 Angstrom, b = 5.508 Angstrom, c = 37.0422 Angstrom and another tetragonal low-T-c 2212 phase with lattice constants a = b = 5.419 A, c = 30.832 Angstrom.

引用

页码：199 / 208

页数：10

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