CRYSTAL-GROWTH AND CHARACTERIZATION OF SUPERCONDUCTING LEAD CUPRATES

被引：17

作者：

XUE, JS ^{[1
]}

REEDYK, M ^{[1
]}

DABKOWSKI, A ^{[1
]}

DABKOWSKA, H ^{[1
]}

GREEDAN, JE ^{[1
]}

CHEN, CH ^{[1
]}

机构：

[1] UNIV OXFORD,CLARENDON LAB,OXFORD,ENGLAND

来源：

JOURNAL OF CRYSTAL GROWTH | 1991年 / 113卷 / 3-4期

关键词：

D O I：

10.1016/0022-0248(91)90069-H

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

High quality single crystals of Pb2Sr2(R/Ca)Cu3O8+y (R = Nd, Sm, Gd, Dy, Er, Tm, Yb, Lu and Y), the 2213 phase of the lead cuprate family, have been grown by PbO/NaCl flux and seed crystal methods. The role of NaCl and the pseudobinary phase diagrams of the crystal growth system are investigated. A correlation between crystal quality and superconducting properties of Pb2Sr2(R/Ca)Cu3O8+y is observed. The 1212 lead cuprate phase has also been prepared in single crystal form by a semi-ceramic method. The oxygen partial pressure seems to be the key to the determination of the product compound in the crystal growth process; the 2213 lead cuprate phase can be prepared under low oxygen partial pressure while the 1212 phase requires an oxidizing atmosphere.

引用

页码：371 / 378

页数：8

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