About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review Letters
Paper
Unified picture of near-edge and extended x-ray-absorption fine structure in low-Z molecules
Abstract
Self-consistent X+ multiple-scattering calculations for N2 and O2 reveal a close connection between the prominent multiple-scattering shape resonances found near threshold and the weak single-scattering extended x-ray-absorption fine-structure (EXAFS) oscillations at higher energy. The shape resonance may be interpreted as the first, enhanced, EXAFS wiggle while the valence electron potential is found to significantly influence the EXAFS, signifying a breakdown of the conventional picture. © 1991 The American Physical Society.