2018•Physical Review AOpen access

Elastic scattering of twisted electrons by an atomic target: Going beyond the Born approximation

Valeriia P. Kosheleva, V. A. Zaytsev, A. Surzhykov, В. М. Шабаев, Th. Stöhlker

Abstract

The elastic scattering of twisted electrons by neutral atoms is studied within the fully relativistic framework. The electron-atom interaction is taken into account in all orders, thus allowing us to explore high-order effects beyond the first Born approximation. To illustrate these effects, detailed calculations of the total and differential cross sections as well as the degree of polarization of scattered electrons are performed. Together with the analysis of the effects beyond the first Born approximation, we discuss the influence of the kinematic parameters of the incident twisted electrons on the angular and polarization properties of the scattered electrons.

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Key concepts: Born approximation, Electron, Scattering, Physics, Elastic scattering, Polarization (electrochemistry), Atomic physics, Atom (system on chip)