What does EXAFS stand for?

EXAFS stands for Extended X-ray Absorption Fine Structure. This technique is used in the study of the local structure around specific elements within complex materials.

The method relies on the absorption of X-rays and provides detailed information about the environment of the absorbing atom, such as the types and distances of neighboring atoms. By analyzing the oscillations in the absorption spectrum that occur just above the absorption edge of an element, researchers can infer the coordination number, bond lengths, and even the nature of chemical bonding around the absorbing atom.

This is a powerful tool in inorganic chemistry and materials science, as it allows for insight into the structure and dynamics of a range of systems, from solid-state compounds to biological systems, without needing to crystallize the sample.