L2,3 Transitions in Liquid Na and Al: Edge Singularity and Extended X-Ray-Absorption Fine Structure

Abstract

The L2,3 excitation spectra of liquid and solid Na and Al were measured at several temperatures throughout the energy intervals 30-80 and 70-170 eV, respectively, using yield spectroscopy. The spike at the 31-eV Na edge is virtually unchanged in the liquid, indicating that the edge is insensitive to long-ranged crystalline order. The broader structures up to 100 eV above the edges in Na and Al, however, are washed out in the liquid. © 1975 The American Physical Society.