Article

Partial time delays in elastic electron scattering by rectangular potential well with arising discrete levels

M. Ya. AmusiaRacah Institute of Physics, the Hebrew University, Jerusalem, IsraelA. S. BaltenkovArifov Institute of Ion-Plasma and Laser Technologies, Tashkent, UzbekistanIgor WoiciechowskiAlderson Broaddus University, Philippi, USA

APS Division of Atomic, Molecular and Optical Physics Meeting Abstractsjournal2020en

ABI

Abstract

We have studied the time delays of slow electrons scattered by a rectangular in spherical coordinates potential well as function of the well parameters. We have shown that electron interaction with the scattering center qualitatively depends on the presence of discrete levels in the well. While electron retention by the scattering center dominates for the potential well with no discrete levels, the appearance of a level leads to an opposite situation where the incident electron hardly enters the scatterer. Such a behavior of the time delay is universal since it is found not only for the first s-level but also for the subsequent arising s-, p-, and d-levels.

Topics

Quantum and electron transport phenomena Electron and X-Ray Spectroscopy Techniques Surface and Thin Film Phenomena

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