Documentation for the FEFF Project

Documents for the current version of FEFF are available in four formats: PostScript, PDF, dvi, and wiki. Documents for ATOMS and older versions of FEFF are available in HTML, PostScript and unformatted ASCII (text).

Many graphical web browsers may be configured to directly display PostScript. Any computer with the free Adobe Reader installed can view PDF files. Files in dvi format can be viewed by a number of freely available viewers (as can PostScript and PDF). Any modern browser can view the wiki pages. All Web browsers can display the hypertext (HTML) versions of the documentation. The ASCII versions are for simple display without a Web browser or other sophisticated textual tool. Documentation for earlier versions of FEFF is available as HTML not broken into chapters.

FEFF8, The latest release of FEFF8 simplifies spin-dependent calculations, and can include core-hole and local field effects.

PostScript, 544 kb
PDF, 445 kb
dvi, 239 kb
Online wiki documentation

FEFF7, fully relativistic multiple scattering XAFS and XANES with polarization dependence. Also has new Dirac-Fock atomic potentials and improved self-energies.

HTML
PostScript, 178 kb
Plain Ascii, 75 kb

FEFF6, multiple scattering XAFS and XANES with polarization dependence.

HTML
PostScript, 170 kb
Plain Ascii, 67 kb

Literature references:

FEFF references and dissertations:

Relativistic Spin-dependent X-ray Absorption Theory, PhD thesis, Alex Ankudinov (1996). This is a PostScript file. 853 kb.
Multiple Scattering Calculations of Xray Absorption Spectra, S.I. Zabinsky, et al., 10/31/94
X-ray Absorption Fine Structure Debye-Waller Factors, PhD thesis, Anna V. Poiarkova (1999). This is a GZippedPS file (1076 kb).
Theory and Interpretation of L-shell X-ray Absorption Spectra, PhD thesis, Alexey I. Nesvizhskii (2001). This is a PostScript file. 810 kb.
Inelastic Losses in X-ray Absorption Theory, PhD thesis, Luke Campbell (2002). This is a PostScript file. 1278 kb.

Feff tables and conversion programs:

Plain Ascii , 14 kb

Earlier versions of FEFF: