Compatibility Relationships for X-Ray Threshold Shapes

Abstract

Bounds on the exponents of the many-electron x-ray threshold anomaly are obtained, and a relationship between soft- and hard-x-ray threshold shapes is derived. The spectra of ${\mathrm{Mg}}_x{\mathrm{Sb}}_{1-x}$ alloys and Al metal are shown to be inconsistent with the many-electron theory of threshold exponents.