X-RAY STRUCTURAL INVESTIGATION OF AN UNTWINNED SINGLE-CRYSTAL OF ORTHORHOMBIC YBA2CU3O6.93

被引：36

作者：

SIMON, A

KOHLER, J

BORRMANN, H

GEGENHEIMER, B

KREMER, R

机构：

[1] Max-Planck-Inst fuer, Festkoerperforschung, Germany

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 77卷 / 01期

关键词：

Crystals--Structure; -; Oxygen;

D O I：

10.1016/0022-4596(88)90110-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Crystals of YBa2Cu3O6.93 were grown in a SnO2 crucible. Parts of these crystals were untwinned and isolated for X-ray structure investigations at seven temperatures between 103 and 303 K. The positions of the chain atoms Cu(1) and O(4) are occupied at 100 and 93%, respectively. There is no evidence for oxygen atoms between the chains (site O(5) in ( 1/2 00). The temperature-dependent changes of the lattice constants and the positional shifts of O(1), Cu(2), and Ba are discussed.

引用

页码：200 / 203

页数：4

共 10 条

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