EFFECT OF 3D METALLIC DOPANTS ON SUPERCONDUCTIVITY OF THE BI2CASR2CU2O8 SYSTEM

被引：12

作者：

AWANA, VPS

AGARWAL, SK

KUMARASWAMY, BV

SINGH, BP

NARLIKAR, AV

机构：

[1] Nat. Phys. Lab., New Delhi

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1992年 / 5卷 / 06期

关键词：

D O I：

10.1088/0953-2048/5/6/010

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of various 3d substitutions at Cu sites on the superconductivity of the Bi2CaSr2Cu2O8 system (Bi-2122) has been investigated. The metallic dopants studied are Ni, Fe, Co and Ga. The lattice parameters of the various samples have been determined through x-ray diffractometry. Superconducting transition temperatures (T(c)) have been determined through both the resistivity and AC susceptibility measurements. In all these cases T(c) decreases with substitution. The results are compared with analogous substitutional studies carried out on other HTSC systems. XPS, XANES and STM studies of some of these samples are also discussed.

引用

页码：376 / 380

页数：5

共 27 条

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