Reinvestigation of the magnetic behavior of O3-LiCoO2

被引：20

作者：

Artemenko, Alla ^{[1
]}

Menetrier, Michel ^{[1
]}

Pollet, Michael ^{[1
]}

Delmas, Claude ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, ICMCB, F-33608 Pessac, France

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 06期

关键词：

ELECTRONIC-STRUCTURE; LOCAL COORDINATION; COBALT OXIDE; TRANSITION; LIXCOO2; LICOO2; COO;

D O I：

10.1063/1.3226700

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Stoichiometric high temperature LiCoO2 obtained by long annealing in oxygen was characterized by electron spin resonance and magnetization measurements. Both methods allow identifying unambiguously not only the presence of traces of cobalt oxides in the material but also paramagnetic defects in lithium cobaltite itself. We report on the presence of surface Li+-O- centers in pure LiCoO2, which has not been observed before in this material, and on the presence of Co2+ related centers in argon- and subsequent oxygen-annealed samples. (C) 2009 American Institute of Physics. [doi:10.1063/1.3226700]

引用

页数：8

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