TOP-SEEDED GROWTH OF SUPERCONDUCTING (BA1-XKX)BIO3 CRYSTALS BY AN ELECTROCHEMICAL METHOD

被引：24

作者：

HAN, PD

CHANG, L

PAYNE, DA

机构：

[1] UNIV ILLINOIS,MAT LAB,URBANA,IL 61801

[2] UNIV ILLINOIS,SCI & TECHNOL CTR SUPERCONDUCT,URBANA,IL 61801

来源：

JOURNAL OF CRYSTAL GROWTH | 1993年 / 128卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0022-0248(07)80047-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A method is described for the growth of large single crystals of cubic BKBO. The improved technique uses top-seeded growth from Na-free compositions through use of a BKBO reference electrode. By careful control of over-potential it is possible to control the K content (x) and homogeneity in the crystals. For x = 0.38 the highest T(c) was obtained (32 K) with a sharp transition (DELTAT = 1 K). Details are reported for the crystal growth process and the superconducting properties.

引用

页码：798 / 803

页数：6

共 8 条

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