Electrons inelastically

Seah M P and Dench W A 1979 Quantitative electron spectroscopy of surfaces a standard data base for electron inelastic mean free paths in solids Surf, interface Anai. 1 2... 

In this investigation, only electron inelastic scattering and x-ray line broadening were chosen for substantial correction. There were two principal reasons first, these broadening mechanisms account for the largest part of the distortion, and, second their contributions are easily determined or approximated. 

As a general rule, when Pgl is energetically possible, it is overwhelmingly preferred to other electronically inelastic channels. Thus He ... 

Figure 19-20. Decay channels of a transient anion of a fundamental DNA unit (SU) formed at electron energy E0. Pathway 1, 2 and 3 represent the elastic, DEA and electronically inelastic channels, respectively. In channels 1 and 3, the additional electron can be emitted in a continuum of states (e ) or transferred to other DNA subunits (ep)...

When a solid is bombarded with high energy electrons the interaction produces secondary electrons (elastic), back-scattered electrons (inelastic), low loss electrons. Auger electrons, photo electrons, electron diffraction, characteristic x-rays, x-ray continuum, light, hole electron pairs and specimen current. These interactions are used to identify the specimen and elements of the specimen and can also be used to physically characterize particulate systems. 

When compared with DCSs calculated on the lowest adiabatic CI+H2 PES (the CWad PES), the multi-surface DCSs agree exceptionally well for transitions out of low H2 rotational levels. This confirms the accuracy of the multi-surface methodology and seattering eode. However, as the H2 rotational level increases, the multi-surface reactive DCSs beeome progressively smaller than the single-surface CWad predictions. This is likely an indication of loss of reactive flux through electronically inelastic processes, whieh are not possible in a single-surface model. Obviously, more work should be done on this aspect of the reaction. 

Figure 2.7 Artistic view of electron-phonon scattering. Lattice motions involving the displacement of polar modes can scatter the electron inelastically. The polar fluctuations create dipolar fields that can modulate the electron distribution. The electron responds to these stochastic fluctuations in local fields with a change in its energy and effective momentum transfer to the lattice. This process is depicted by comparing (a) and (b) to visualise the motion of the lattice atoms, leading to a change in direction or momentum of the electron from its initial path shown in (a).

Single-plasmon contributions to the electron inelastic mean free path of swift electrons have been calculated for many years, both in the high-velocity limit... 

The experimental investigation of the phonon dispersion curves of elpa-solites has been rather limited, partly because features due to electronic inelastic scattering of neutrons occur with greater intensity than phonon peaks. The energy of the S3 mode has been determined from neutron inelastic scattering data [40, 48]. The T-point minimum becomes more distinct in the dispersion relation of this mode as the temperature is lowered [40]. Biihrer and Giidel [106] have measured and calculated the phonon disper-... 

The Gelbart-Freed model is based on the assumption that this direct, electronically inelastic process is significantly less probable than the perturbation-facilitated one. This is a reasonable assumption in the case of electronic transitions involving a change of electron spin multiplicity (AS 0) or a small... 

Bondybey and Miller (1978) and Katayama, et al, (1979) proposed that the rates of electronically inelastic processes in the gas phase should follow a Franck-Condon rate law,... 

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