Growth of high quality Bi2Sr2CaCu2Oy single crystals by the modified vertical Bridgman method

被引：3

作者：

Nagashima, O ^{[1
]}

Tanaka, H ^{[1
]}

Echizen, Y ^{[1
]}

Kishida, S ^{[1
]}

机构：

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

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 412卷

关键词：

Bridgman technique; single crystal growth; oxide superconducting materials;

D O I：

10.1016/j.physc.2004.01.081

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We grew Bi2Sr2CaCu2Oy (Bi-2212) single crystals by the modified vertical Bridgman (VB) method, and investigated their characteristics in order to clarify the optimum growth conditions for obtaining high-quality Bi-2212 single crystals. The Bi-2212 single crystals were grown changing pulling rates or using starting materials after pre-treatments. We found that the superconducting critical temperature (T-c) of the single crystal prepared at a slow growth rate of 0.25 mm/h was about 88 K and that the single crystals were a Bi-2212 single phase. Moreover, the single crystals grown using the starting materials pre-treated in Ar and O-2 atmospheres, had the T-c of about 88 and 86 K, respectively. In addition, both of single crystals were Bi-2212 single phase. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：607 / 609

页数：3