Author/Authors :
Tatsumi، نويسنده , , Kazuyoshi and Muto، نويسنده , , Shunsuke and Yamamoto، نويسنده , , Yu and Ikeno، نويسنده , , Hirokazu and Yoshioka، نويسنده , , Satoru and Tanaka، نويسنده , , Isao، نويسنده ,
Abstract :
Site-specific electronic structures were investigated by electron energy loss spectroscopy (EELS) under electron channeling conditions. The Al-K and Mn-L2,3 electron energy loss near-edge structure (ELNES) of, respectively, NiAl2O4 and Mn3O4 were measured. Deconvolution of the raw spectra with the instrumental resolution function restored the blunt and hidden fine features, which allowed us to interpret the experimental spectral features by comparing with theoretical spectra obtained by first-principles calculations. The present method successfully revealed the electronic structures specific to the differently coordinated cationic sites.
Keywords :
Electron energy loss spectroscopy (EELS) , First-Principles Calculations , Electron channeling , Site-specific chemical states