THE VALENCE OF COPPER IN LACUO3 - AN X-RAY ABSORPTION STUDY

被引：15
|
作者：
WEBB, AW [1 ]
KIM, KH [1 ]
BOULDIN, C [1 ]
机构：
[1] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899
来源：
SOLID STATE COMMUNICATIONS | 1991年 / 79卷 / 06期
关键词：
D O I：
10.1016/0038-1098(91)90040-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The simplest member of the family of the perovskite-structured, Cu-based high-temperature superconductors is the rhombohedrally-distorted LaCuO3. Formal valence rules would assign the trivalent state to Cu. The X-ray near-edge structure of LaCuO3 has been studied around the copper K-edge at 8979 eV to confirm this Cu valency, using standard compounds for reference. As with La2CuO4 and YBa2Cu3O(7-y), the Cu in LaCuO3 was found to be divalent in character.
引用
收藏
页码：507 / 508
页数：2
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