PREPARATION AND PHASE RESEARCH OF THE 110-K HIGH-TC SUPERCONDUCTOR BI2SR2CA2CU3OY DOPED WITH SB AND PB

被引：9

作者：

XU, QL

CHENG, TZ

LI, XG

YANG, L

FAN, CG

WANG, HQ

MAO, ZQ

PENG, DK

CHEN, ZJ

ZHANG, YH

机构：

[1] UNIV SCI & TECHNOL CHINA,DEPT PHYS,23002 HEFEI,PEOPLES R CHINA

[2] UNIV SCI & TECHNOL CHINA,CTR STRUCT & ELEMENT ANAL,23002 HEFEI,PEOPLES R CHINA

来源：

PHYSICA C | 1990年 / 168卷 / 5-6期

关键词：

Antimony and Alloys - Bismuth Compounds - Doping - Ceramic Materials - Lead and Alloys - X-Rays - Diffraction;

D O I：

10.1016/0921-4534(90)90067-O

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A nearly pure 110 K phase of the ceramic superconductor Bi1.92Pb0.38,0.3SbxSi2Ca2Cu3.2O10-δ was obtained by codecomposition of coprecipatated oxalate technique. These samples with Sb=0.1, Pb=0.38 had zero resistance temperature at 102 K. For those samples with Sb=0.3, Pb=0.3, Tco was equal to 90 K. Their magnetic susceptibility all dropped sharply at 110 K and it does not change at 80 K. X-ray diffraction revealed that there was no 80 K or 20 K phase but the 110 K and an unknown phase. This unknown phase itself is not superconducting above 77 K. The average composition of the unknown phase is given as Bi32Pb3Sb7Sr29Cu7Ox. © 1990.

引用

页码：489 / 492

页数：4

共 8 条

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