Oscillator model applied to calculations of energy loss in anisotropic 2D materials

S SEGUI; GERVASONI J. L.; Z. L. MISKOVIC; ARISTA N R

Ottawa

Conferencia; ICPEAC2023: XXXIII Intl. Conference on Photonic, Electronic and Atomic Collisions; 2023

University of Ottawa

We apply the oscillator model to study the energy loss processes of external charged particles interacting with a two-dimensional (2D) material characterized by an anisotropic conductivity tensor. We model the material as a monolayer of harmonic oscillators, with anisotropic modes for the in-plane electronic vibration. We consider parallel and perpendicular trajectories of the external particle, obtaining analytical expressions in terms of reduced variables. This allows us to analyze in detail the interaction and to adapt the model to the considered material using adequate values for the physical parameters involved.