NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Eric L. Shirley, Lars G. Pettersson, D. Prendergast
Abstract
We consider the constrained-occupancy and (linear-response) self-consistent-field methods for screening of core-hole potentials that affect core excitation near-edge spectra. The methods are not exact, but each has distinct advantages and limitations. The excitation spectra to which we refer include x-ray absorption spectroscopy (XAS), electron energy-loss spectroscopy (EELS), and non-resonant inelastic x-ray scattering (NRIXS). The screening of interactions that arises is always accompanied by self-energy or lifetime-damping effects of electron and hole states, which we also discuss briefly.
Citation
International Tables for Crystallography: Volume I, X-ray Absorption Spectroscopy
Shirley, E.
, Pettersson, L.
and Prendergast, D.
(2022),
Core-hole potentials and related effects, International Tables for Crystallography: Volume I, X-ray Absorption Spectroscopy, Internation Union of Crystallography, Chester, , [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=927466
(Accessed October 9, 2025)