COMPARATIVE-STUDY OF THE L-23-M45M45 AUGER DECAY IN CUO AND CU USING SYNCHROTRON-RADIATION

We report on the evolution of L-3- and L-2-M45M45 Auger spectral regio ns in Cu and CuO as a function of photon energy used to create the ini tial hole states. It is shown that the satellite features in Auger spe ctra are completely suppressed close to the threshold; intensities of these satellites increase dramatically when photon energy is swept thr ough deeper core level thresholds. We discuss various decay channels r esponsible or the spectral features ir the L-23-M45M45 regions of Cu a nd CuO and obtain quantitative estimates for their contributions to th e total spectrum. (C) 1998 Elsevier Science B.V. All rights reserved.