Auger kinetic energies, table

TABLE VII Evaluation of Initial (Ae) and Final State (Af Effects from Experimental Binding Energy (Pis and P2p) and Auger Kinetic Energy (KL2,sL2,3) Shifte ... 

Table 1. Binding energies of core lines and kinetic energies of Auger L3M4,sM4 5 peaks for the compounds reported. All values are in eV. ...

Figure 14.25 Table of values and plot of the Auger MNN electron kinetic energy for tin and Auger parameter vs. the photoelectron binding energy for the tin 3ds/2 electron in the element and a variety of compounds. The metal and different chemical states of tin in compounds can be readily distinguished. [From Moulder et al., courtesy of Physical Electronics USA, Inc. (www.phi.com).]...

AES dilfers from XPS in that the surface is ionized by a finely focused electron beam of 5 30 kV (Fig. 1). The secondary electrons have no specific information content in AES, but the Auger electrons, which are emitted shortly after the secondary electrons, and which involve transitions between different orbitals, are recorded as a function of their kinetic energy. Such Auger electrons are also emitted after ionization by x-rays in XPS and consequently the same Auger transitions lines are also observed in XPS. In XPS, this aspect of the technique is sometimes referred to as XAES (Table 1). Because of a very high background, AES spectra are conveniently represented as differentiated spectra. The peak-to-peak heights (more accurately, peak areas in the nondifferentiated spectrum) are proportional to the number of atoms in the probed sample volume. 

Figure 2 Survey of the most useful Auger transitions for all elements in the periodic table. Black diamonds indicate the strongest peaks usually used in practical AES applications. Gray bands indicate the kinetic energies of less intense peal . (Reprinted from www.eaglabs.com with permission of the Evans Analytical Group.)...

Table 2. Binding Energies, XAES Kinetic Energies, and Auger Parameters Obtained at Normal Electron Emission for Silica Subjected to Ar+ etching...

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