OXYGEN-VACANCY ORDERING IN Y2BA4CU7O15-EPSILON

被引：9

作者：

KREKELS, T ^{[1
]}

VANTENDELOO, G ^{[1
]}

AMELINCKX, S ^{[1
]}

KARPINSKI, J ^{[1
]}

KALDIS, E ^{[1
]}

RUSIECKI, S ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,FESTKORPERPHYS LAB,CH-8093 ZURICH,SWITZERLAND

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 23期

关键词：

D O I：

10.1063/1.105789

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Y2Ba4Cu7O15-epsilon samples prepared at high oxygen pressures were investigated by means of electron microscopy. Often grains show modulations along the a[100] direction, identified as oxygen-vacancy chain ordering of the type previously observed in the 123 compound. This identification is suggested by electron diffraction and high resolution data and is supported by image simulations. Compared to the original model of chain ordering in the CuO layer a deformation of the neighboring BaO layers is included here.

引用

页码：3048 / 3050

页数：3

共 17 条

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