INSITU OBSERVATIONS OF CRYSTAL-GROWTH OF BI-BASED OXIDE SUPERCONDUCTORS

被引：38

作者：

KOMATSU, H

KATO, Y

MIYASHITA, S

INOUE, T

HAYASHI, S

机构：

[1] Institute for Materials Research, Tohoku University, Aoba-ku, Sendai, 980

来源：

PHYSICA C | 1991年 / 190卷 / 1-2期

关键词：

D O I：

10.1016/S0921-4534(05)80185-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In situ observations of crystal growth and decomposition of Bi-based oxide superconductors (BSCCO) were carried out by high-temperature optical microscopy. The growth processes of BSCCO from high-temperature solutions of various compositions were studied by slowly cooling a liquid drop on an MgO substrate. The formation of the high-T(c) phase by a peritectic reaction between a solid and a liquid was observed. The high-T(c) phase was also formed by the decomposition of the low-T(c) phase. These in situ observations led to a proposal of a modified pseudo-binary phase diagram where the high-T(c) phase coexists with a liquid.

引用

页码：14 / 17

页数：4

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