GROWTH OF SINGLE-CRYSTALS OF BI-SR-CA-CU-O

被引：37

作者：

SHIGEMATSU, K

TAKEI, H

HIGASHI, I

HOSHINO, K

TAKAHARA, H

AONO, M

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

[2] INST CHEM & PHYS RES,WAKO,SAITAMA 351,JAPAN

来源：

JOURNAL OF CRYSTAL GROWTH | 1990年 / 100卷 / 03期

关键词：

D O I：

10.1016/0022-0248(90)90269-Q

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The composition of molten starting materials at which superconducting single crystals of the Bi-Sr-Ca-Cu-O system (Tc = 85 K) first crystallize has been investigated. After several growth experiments by a slow cooling method, the composition 33 at% BiO1.5, 24 at% SrO, 18 at% CaO, 25 at% CuO was chosen as the starting molten composition. Although small in size, the crystals grown by the slow cooling method are of good quality. These crystals are found to be grown by the top-seeded solution growth (TSSG) method as crystal aggregates composed of filmy crystals. To interprete the crystallization process from the Bi-Sr-Ca-Cu-O solution, a tentative pseudobinary phase relation between Bi2(Sr,Ca)O4 and (Sr,Ca)CuO2 is proposed. © 1990.

引用

页码：661 / 667

页数：7

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