TRANSITION-METAL OXIDE PEROVSKITES BY PHOTOELECTRON AND X-RAY ABSORPTION SPECTROSCOPY

被引：7

作者：

MADHUSUDAN, WH ^{[1
]}

KOLLALI, S ^{[1
]}

SARODE, PR ^{[1
]}

HEGDE, MS ^{[1
]}

GANGULY, P ^{[1
]}

RAO, CNR ^{[1
]}

机构：

[1] INDIAN INST SCI,SOLID STATE & STRUCT CHEM UNIT,BANGALORE 560012,INDIA

来源：

PRAMANA | 1979年 / 12卷 / 04期

关键词：

ESCA; perovskites; Photoelectron spectroscopy; transition metal oxides; x-ray; (K; L[!sub]III[!/sub]) absorption spectra;

D O I：

10.1007/BF02894700

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

X-ray and ultraviolet photoelectron spectroscopy as well as x-ray absorption spectroscopy have been employed to investigate transition metal oxide perovskites of the general formula ABO3 (A = La or rare-earth ion, B=trivalent transition metal ion). Systematics in the core levels and in the valence bands in the series of LaBO3 compounds have been discussed. Lanthanum chemical shifts in the x-ray absorption spectra in this series show interesting trends. Photoelectron spectra of the solid solutions, LaNi1-x Co x O3, LaNi1-x Fe x O3 and LaFe1-x Co x O3 show that the rigid band model is applicable to these systems. It is shown that x-ray photoelectron spectroscopy can be employed to identify multiple oxidation states of transition metal ions in oxide perovskites. © 1979 Indian Academy of Sciences.

引用

页码：317 / 329

页数：13

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