Focusing effects for atoms sputtered from the (001) Ni face with energy and angular resolution

TL;DR

This study uses molecular dynamics simulations to analyze how focusing effects of sputtered atoms from Ni (001) surface vary with magnetic state, energy, and angle, revealing state-dependent changes in atom distributions.

Contribution

It introduces a detailed simulation-based analysis of focusing and overfocusing effects for sputtered atoms on Ni (001) surfaces, highlighting magnetic state influences.

Findings

Focusing and overfocusing decrease when Ni surface transitions to ferromagnetic state.

Distribution of sputtered atoms depends on azimuthal angle and surface atom binding energy.

Magnetic state significantly affects atom focusing behavior.

Abstract

Peculiarities of the focusing and overfocusing of atoms sputtered from the surface of (001) Ni face are studied with the use of molecular dynamics computer simulations. It is discovered that the numbers of focused and overfocused sputtered atoms decrease under the transition of the (001) Ni face from the paramagnetic to the ferromagnetic state. The evolution of the two-dimensional energy and polar angle resolved distributions of sputtered atoms when changing the azimuthal angle and the binding energy of atoms at the surface is investigated.