Crystal structure and physical properties of a misfit-layered cobaltite (CaOH)1.14CoO2

被引：5
|
作者：
Isobe, M. [1 ]
Shizuya, M. [1 ]
Takayama-Muromachi, E. [1 ]
机构：
[1] Natl Inst Mat Sci, Adv Nanomat Lab, Tsukuba, Ibaraki 3050044, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
cobalt oxide; composite crystal; incommensurate; resistivity; seebeck coefficient;
D O I：
10.1016/j.jmmm.2006.10.355
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the crystal structure and transport properties of the new cobalt oxide (CaOH)(1.14)CoO2. The compound has the layer structure, which consists of CdI2-type CoO2 layers and rock-salt-type double CaOH atomic layers. The two subcells have incommensurate periodicity along the a-axis, resulting in a modulated crystal structure due to the inter-subcell interaction. The structural modulation affects carrier conduction through the potential randomness. We found that the two-dimensional (2-D) variable-range-hopping-type hole conduction is dominant at low temperature. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：E269 / E271
页数：3
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