An introduction to X-ray Absorption Fine Structure Spectroscopy

Sakura Pascarelli 

Europen Synchrotron Radiation Facility (ESRF), 6, Jules Horowitz, Grenoble 38000, France


In this tutorial I will give a very basic introduction to X-ray Absorption Fine Structure (XAFS) Spectroscopy. I will start by the definition of the absorption coefficient and its measurement. Then I will describe the physical origin of the fine structure and illustrate its sensitivity to the local chemical and structural environment of the absorber atom. I will then show how the Extended X-ray Absorption Fine Structure (EXAFS) can be interpreted to extract quantitative structural information in the framework of the gaussian approximation (low disorder). Finally I will discuss typical applications, the complementarity with Diffraction Methods and the advantages of 3rd generation sources for XAFS Spectroscopy. I will end the tutorial by showing an example or two of recent experiments carried out at the ESRF.


Presentation: invited oral at E-MRS Fall Meeting 2003, Pre-School of Symposium B, by Sakura Pascarelli
See On-line Journal of E-MRS Fall Meeting 2003

Submitted: 2003-07-09 17:14
Revised:   2009-06-08 12:55