Degree of covalency of LiCoO2: X-ray emission and photoelectron study

被引:70
作者
Galakhov, VR
Kurmaev, EZ
Uhlenbrock, S
Neumann, M
Kellerman, DG
Gorshkov, VS
机构
[1] UNIV OSNABRUCK,FACHBEREICH PHYS,D-49069 OSNABRUCK,GERMANY
[2] RUSSIAN ACAD SCI,INST CHEM SOLIDS,URAL DIV,EKATERINBURG 620219,RUSSIA
关键词
D O I
10.1016/0038-1098(96)00251-7
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The layered compound LiCoO2 was studied by means of X-ray emission (CoL alpha, OK alpha spectra) and X-ray photoelectron spectroscopy. The data were compared with those of CoO. Strong covalency of LiCoO2 was found and its value was estimated. The measurements show that LiCoO2 must be determined as a charge-transfer insulator where the band gap is formed by d(6) (L) under bar-states. Copyright (C) 1996 Elsevier Science Ltd
引用
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页码:221 / 224
页数:4
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