STRUCTURAL CHARACTERISTICS OF THE 40K SUPERCONDUCTOR BI2SR5CU3(CO3)(2)O-10 - A HREM STUDY

被引：5

作者：

HERVIEU, M

PELLOQUIN, D

MICHEL, C

VANTENDELOO, G

RAVEAU, B

机构：

[1] Laboratoire CRISMAT, ISMRA, Université de Caen, 14050 Caen Cedex

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1994年 / 112卷 / 01期

关键词：

D O I：

10.1006/jssc.1994.1278

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The structural characteristics of the 40K superconductor Bi2Sr5 Cu-3(CO3)(2)O-10 have been studied by HREM. The [110] direction allows imaging of layer stacking; the interpretation of the contrast was confirmed by image calculations. The oxycarbonate Bi2Sr5Cu3 (CO3)(2)O-10 exhibits a modulated structure, the angle between the c* axis and the modulation vector k being close to 29 degrees. Intergrowth defects have been characterized as n' = 1 and n' = 3 members of the family [Bi2Sr2CO6](n) [Sr2CuCO3O2](n'.) Two types of oriented domains were observed: the classical 90 degrees orientation variants and an original type which results from a superdislocation mechanism. (C) 1994 Academic Press,Inc.

引用

页码：139 / 147

页数：9

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