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Updated: May 24, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Electron energy loss spectra and overestimation of inelastic mean free paths in many-pole models
Jay D Bourke1, Christopher T Chantler
1School of Physics, University of Melbourne, Parkville, Victoria, 3010 Australia.
Abstract:
We investigate established theoretical approaches for the determination of electron energy loss spectra (EELS) and inelastic mean free paths (IMFPs) in solids. In particular, we investigate effects of alternate descriptions of the many plasmon resonances that define the energy loss function (ELF), and the contribution of lifetime broadening in these resonances to the IMFP. We find that despite previously claimed agreement between approaches, approximations of different models consistently conspire to underestimate electron scattering for energies below 100 eV, leading to significant overestimates of the IMFP in this regime.
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