A study of transferability of atomic background on EXAFS spectra of simple gaseous compounds of As

被引：8

作者：

Kodre, A

Preseren, R

Arcon, I

Gomilsek, JP

Borowski, M

机构：

[1] Fac Math & Phys, SI-1000 Ljubljana, Slovenia

[2] Jozef Stefan Inst, SI-1001 Ljubljana, Slovenia

[3] Nova Gorica Polytech, SI-5000 Nova Gorica, Slovenia

[4] Fac Mech Engn, SI-2000 Maribor, Slovenia

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2001年 / 8卷 / 08期

关键词：

atomic background transferability; AsK-edge EXAFS; As; As2O3 and AsH3 gases;

D O I：

10.1107/S0909049500015363

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

From EXAFS spectra of As and As2O3 vapors and arsine gas AsH3 the ab initio calculated structural signal is removed. The remainders comprise small absorption edges due to shake-up channels involving electrons from 3d or 3p subshell. With enhanced resolution, the edges reveal a fine splitting and a varying contribution of resonance channels, due to individual molecular energy-level structure of the samples. On the resolution level appropriate for routine EXAFS analysis the remainders coincide, representing a unique and transferable atomic absorption background for the range of As valence states spanned by the samples.

引用

页码：282 / 284

页数：3

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