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FIZIKA A 4 (1995) 2, 149-162
 
CHEMICAL AND SOLID STATE EFFECTS ON AUGER PROCESSES
LASZLO KÖVER
Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51,
H-4001 Debrecen, Hungary
Received 7 April 1995
Revised manuscript received 24 May 1995
Following a short review of the phenomena leading to changes in the Auger spectral
distributions, it is demonstrated how Auger spectroscopy can be used for revealing the
electronic structure local to the initial core hole and for obtaining information on
hole-hole and electron-electron correlations. Using the Auger parameter concept, by the
help of different Auger parameters, the initial and final state effects can be separated,
the local screening and ligand polarizability can be characterized and the charge transfer
can be determined. The advantages of the use of the X-ray excited Auger spectroscopy and
cluster molecular orbital theoretical models in the studies of chemical and solid state
effects on Auger processes are discussed. The power of these methods is illustrated by
recent results obtained for metals, alloys and oxides, including materials of great
practical importance.
UDC 54.67, 54.68, 539.23
PACS 71.70.Ch, 82.80.Pv
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