Growth of Bi2Sr2CaCu2Oy single crystals by a self-flux method using precursors

被引：3

作者：

Kishida, S

Hosokawa, E

Liang, WY

机构：

[1] Univ Cambridge, Irc Superconduct, Cambridge CB3 OHE, England

[2] Tottori Univ, Dept Elect & Elect Engn, Tottori 6808552, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 205卷 / 03期

关键词：

Bi-2212; superconductor; single crystal; precursor; oxides;

D O I：

10.1016/S0022-0248(99)00318-8

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We describe the preparation of Bi2Sr2CaCu2Ox (Bi-2212) single crystals by a self-flux method using a SrBiOy precursor and two different forms of Ca-Cu-O precursors. The precursors SrBiOy, Ca-Cu-O(1) and Ca-Cu-O(2) were produced by sintering at 800 degrees C, 800-950 degrees C and higher than 950 degrees C, respectively. We found that using these precursors lowered the growth temperature necessary to produce large Bi-2212 single crystals by about 100 degrees C as compared with starting without precursors, and that the Bi-2212 single crystals prepared at 940 degrees C showed a critical transition temperature of 91K. In addition, the advantages of using the precursor containing Ca2CuOz to that containing CaCu2Ow for crystal growth are given. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：284 / 288

页数：5

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