THE INFLUENCE OF THE FOCUSING EFFECT ON THE X-RAY-ABSORPTION FINE-STRUCTURE ABOVE ALL THE TUNGSTEN-L EDGES IN NONSTOICHIOMETRIC TUNGSTEN-OXIDES

被引：40

作者：

KUZMIN, A

PURANS, J

机构：

[1] Inst. of Solid State Phys., Latvian State Univ., Riga

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1993年 / 5卷 / 50期

关键词：

D O I：

10.1088/0953-8984/5/50/023

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The role of multiple-scattering contributions in the formation of the x-ray absorption fine structure (XAFS) above tungsten L edges is discussed for the non-stoichiometric tungsten oxides WO3-x. It is found that the presence of linear or near-linear atomic chains in the WO3-x crystal structure leads, due to the focusing effect, to a strong increase in the XAFS amplitude, which results in an admixture of the L2-edge XAFS with the XAFS above the L1 edge.

引用

页码：9423 / 9430

页数：8