Straggling and plasmon excitation in the energy loss spectra of electrons transmitted through carbon

Electron inelastic mean free paths: influence of the modelling energy‐loss function

“…Ashley et al 10 proposed the simplest momentumdependent ELF for real materials. It can be considered as an extended Drude model, consisting of the sum of terms as…”

“…Besides Penn's approach described above, there are other descriptions of the dielectric behaviour of a material available in the literature. Ashley et al 10 proposed an extended Drude oscillator and Abril et al 11,12 used Mermin oscillators. Despite the great importance of the appropriate description of IMFP, it is not clear which one is most adequate, nor which is the influence of each theoretical description of the momentum dependence of the ELF in the determination of the IMFP.…”

Quantitative analysis of the plasmon loss intensities in x‐ray photoelectron spectra of magnesium

“…The cross-section for extrinsic excitations K e (i.e. the probability that an electron moving in the solid with energy E will lose the energyhω) is given by 8,14 K…”

Effect of nickel on the structure and bond type in amorphous diamond-like carbon films

“…An energy of ~33.0-35.0 eV is expended in excitation of bulk vibrations in diamond. In carbon condensed systems with tetragonal atomic surroundings (including ADC films), the plasmon peak caused by (π + σ)-excitations lies at loss energies of ~30.0-36.0 eV [7,12]. This energy corresponds to the peak A in the observed spectra.…”

“…It has been suggested [7,11,12] that the peaks in the satellite plasmon loss spectra are caused by plasmon excitations in trigonal-and tetragonal-coordinated carbon formations. In graphite and graphite-like systems with trigonal near ordering, (π + σ)-plasmons are observed at 27.0-29.0 eV [7].…”