THRESHOLD K-LL AUGER-SPECTRA OF P IN INP

The evolution of K-L2,3L2,3 1D2 radiationless resonant Raman scatterin g into Auger-electron emission was studied by tuning synchrotron radia tion across the K edge of P in InP. The spectrum can be interpreted in terms of a two-component model that involves excitation of a photoele ctron (1) into a discrete excitonlike state and (2) into the continuum ; extra-atomic relaxation is taken into account. Auxiliary studies of above-threshold Auger and photoelectron spectra arising from K photoio nization were used to identify the dominantly atomic features of these spectra.