X-ray absorption spectroscopy studies of La1-xSrxFeO3

被引：5

作者：

Chang, CL ^{[1
]}

Chern, G

Tai, MF

Su, YW

Dong, CL

Liu, SY

Hwang, CS

Tseng, PK

机构：

[1] Tamkang Univ, Dept Phys, Tamsui, Taiwan

[2] Natl Chung Cheng Univ, Dept Phys, Chiayi, Taiwan

[3] Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷

关键词：

electronic structure; x-ray absorption spectroscopy;

D O I：

10.7567/JJAPS.38S1.108

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the Fe K-edge and La L-2,L-3-edge x-ray absorption spectroscopy (XAS) studies of a series of La1-xSrxFeO3 samples. The chemical shift and the pre-edge feature strength of Fe K-edge spectra show that both the Fe valence and its 3d holes increase with Sr concentration up to x = 0.8 then saturate. Systematic variations in the whiteline intensity and the above-edge feature in the La L-2,L-3-edge XAS spectra with Sr concentration indicate that the local structure and the electronic state of La are both affected by Sr doping. The correlation between the Fe valence change and the structural variation are briefly discussed.

引用

收藏

页码：108 / 110

页数：3

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