X-Ray Raman Scattering in Metals

Abstract

It is shown that new information about the many-body singularities at the soft x-ray absorption edge in metals could be obtained from an x-ray Raman experiment in which the energy dependence of the edge is observed as a function of momentum transfer (scattering angle). For Li, in particular, it is predicted that a dramatic change could occur from a many-body inhibition of the edge at small scattering angles to an enhancement of the edge at larger scattering angles.