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Core-hole effects on electron energy-loss spectroscopy of Li2O -: art. no. 115112

被引：32
|
作者：
Jiang, N [1 ]
Spence, JCH [1 ]
机构：
[1] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA
来源：
PHYSICAL REVIEW B | 2004年 / 69卷 / 11期
关键词：
D O I：
10.1103/PhysRevB.69.115112
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Excitons in electron-energy-loss spectra (EELS) can be overwhelming in some materials. Here we report EELS from Li2O for both Li and O K edges. Comparison with calculations excluding and including core-hole effects suggests that the one-electron (ground state) band structure theory is not valid for the interpretation of the fine structure in EELS of Li2O. Using a large angle scattering technique, a core exciton in the band gap can be observed in the K edge EELS.
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页数：4
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