Auger-electron ion coincidence studies of soft-x-ray–induced fragmentation ofN2

Abstract

We report a coincidence experiment between energy-selected Auger electrons and the ions produced in the molecular fragmentation following core photoionization of ${\mathrm{N}}_2$. In this type of measurement it is possible to correlate the ion fragmentation products, their kinetic energy, and their electronic configuration with the hole configuration in the doubly charged molecule following the Auger decay of the initial core hole. These data produce new insight into the potential energy curves of the doubly charged molecular ions.