GROWTH AND CHARACTERIZATION OF HIGH-QUALITY SINGLE-CRYSTALS OF R2-XCEXCUO4-Y (R = ND, SM)

被引：101

作者：

PENG, JL ^{[1
]}

LI, ZY ^{[1
]}

GREENE, RL ^{[1
]}

机构：

[1] IBM CORP,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICA C | 1991年 / 177卷 / 1-3期

关键词：

D O I：

10.1016/0921-4534(91)90300-N

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-quality single crystals of R2-xCexCuO4-y (R = Nd, Sm) were prepared over a range of Ce dopings x using CuO flux. By optimizing the growth conditions, free standing platelet single crystals as large as 10 X 10 X 0.1 mm3 were obtained reproducibly. TEM and SEM analyses verified that the crystals were single-phase with uniform Ce distribution. Both resistivity and magnetization showed sharp superconducting transitions (DELTA-T < 1 K) for x = 0.15. Because of the improved quality, the crystals are suitable for a definitive study of intrinsic properties. Details of the methods, post-growth annealing, and characterization of the crystals will be described.

引用

页码：79 / 85

页数：7