Abstract
Spherical-wave corrections in x-ray-absorption fine structure (XAFS) are incorporated using a novel high-energy approximation which replaces the plane-wave approximation and is found to be in excellent agreement all the way to the absorption edge. The single-scattering theory of XAFS is recovered in terms of distance-dependent backscattering amplitudes. Application to the K-shell XAFS of Cu yields results in close agreement with the corresponding exact treatment. Multiple-scattering contributions in XAFS and spherical-wave corrections in angle-resolved photoemission are treated similarly.
| Original language | English |
|---|---|
| Pages (from-to) | 4350-4353 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 34 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1986 |
| Externally published | Yes |