Scattering of twisted relativistic electrons by atoms

V. Serbo, I. P. Ivanov, S. Fritzsche, D. Seipt, and A. Surzhykov
Phys. Rev. A 92, 012705 – Published 20 July 2015

Abstract

The Mott scattering of high-energetic twisted electrons by atoms is investigated within the framework of the first Born approximation and Dirac's relativistic equation. Special emphasis is placed on the angular distribution and longitudinal polarization of the scattered electrons. In order to evaluate these angular and polarization properties we consider two experimental setups in which the twisted electron beam collides with either a single well-localized atom or macroscopic atomic target. Detailed relativistic calculations have been performed for both setups and for the electrons with kinetic energy from 10 to 1000 keV. The results of these calculations indicate that the emission pattern and polarization of outgoing electrons differ significantly from the scattering of plane-wave electrons and can be very sensitive to the parameters of the incident twisted beam. In particular, it is shown that the angular- and polarization-sensitive Mott measurements may reveal valuable information about both the transverse and longitudinal components of the linear momentum and the projection of the total angular momentum of twisted electron states. Thus, the Mott scattering emerges as a diagnostic tool for the relativistic vortex beams.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 24 April 2015

DOI:https://doi.org/10.1103/PhysRevA.92.012705

©2015 American Physical Society

Authors & Affiliations

V. Serbo1,2, I. P. Ivanov3, S. Fritzsche4,5, D. Seipt4, and A. Surzhykov4

  • 1Novosibirsk State University, RUS-630090 Novosibirsk, Russia
  • 2Sobolev Institute of Mathematics, RUS-630090 Novosibirsk, Russia
  • 3CFTP, Instituto Superior Tecnico, University of Lisbon, Avenida Rovisco Pais, 1 1049-001 Lisbon, Portugal
  • 4Helmholtz-Institut Jena, D-07743 Jena, Germany
  • 5Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, D-07743 Jena, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 92, Iss. 1 — July 2015

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×