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QUEELS: Software to calculate the energy loss processes in TEELS, REELS, XPS and AES including effects of the core hole

par Tougaard, Sven;Pauly, Nicolas ;Yubero, Francisco
Référence Surface and interface analysis
Publication Publié, 2022-06-01

Article révisé par les pairs

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Résumé :

We present the user-friendly and freely available software package QUEELS (QUantitative analysis of Electron Energy Losses at Surfaces) that allows to calculate effective inelastic scattering cross sections within the dielectric response description, for swift electrons travelling nearby surfaces in several environments. We briefly describe the underlying theoretical models and illustrate its use to evaluate the distribution of energy losses taking place in electron spectroscopies like transmission electron energy loss spectroscopy (TEELS), X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES) and reflection electron energy loss spectroscopy (REELS), which are widely used for material analysis. This includes the intrinsic excitations due to the core hole in XPS and AES.