Oxide Nanolayers in Stratified Samples Studied by X-Ray Resonant Raman Scattering at Grazing Incidence

被引：7

作者：

Jose Leani, Juan ^{[1
]}

Jorge Sanchez, Hector ^{[1
,2
]}

Perez, Carlos Alberto ^{[3
]}

机构：

[1] Univ Nacl Cordoba, Fac Matemat Astron & Fis, RA-5000 Cordoba, Argentina

[2] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

[3] Lab Nacl Luz Sincrotron, BR-13084971 Campinas, SP, Brazil

来源：

JOURNAL OF SPECTROSCOPY | 2015年 / 2015卷

关键词：

TOTAL-REFLECTION; FLUORESCENCE; SURFACE; SPECTROSCOPY; DYNAMICS; SOLIDS;

D O I：

10.1155/2015/618279

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

X-ray resonant Raman scattering is applied at grazing incidence conditions with the aim of discriminating and identifying chemical environment of iron in different layers of stratified materials using a low resolution energy dispersive system. The methodology allows for depth studies with nanometric resolution. Nanostratified samples of Fe oxides were studied at the Brazilian synchrotron facility (LNLS) using monochromatic radiation and an EDS setup. The measurements were carried out in grazing incident regime with incident photon energy lower than and close to the Fe-K absorption edge. The result allowed for characterizing oxide nanolayers, not observable with conventional geometries, identifying the oxidation state present in a particular depth of a sample surface with nanometric, or even subnanometric, resolution using a low-resolution system.

引用

页数：7

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