Publication detail

Signal oscillations in helium scattering by bismuth atoms in the low energy range

VANÍČKOVÁ, E. PRŮŠA, S. ŠIKOLA, T.

Original Title

Signal oscillations in helium scattering by bismuth atoms in the low energy range

Type

journal article in Web of Science

Language

English

Original Abstract

Low Energy Ion Scattering (LEIS) analysis of bismuth selenide (Bi2Se3), a strong 3D topological insulator, revealed oscillations of the detected signal in dependence on primary ion beam energy. Bismuth is a part of the group of elements where oscillatory behaviour was already noticed, such as gallium, indium, or lead. Generally, it is ascribed to quasi-resonant charge exchange processes between primary ion and target atom. Moreover, clear differences exist between data for target atoms in elemental form and for atoms in compound form. A study of Bi signal yields in different material forms was performed for primary He+ projectiles within the energy range from 0.50 to 6.00 keV. A foil of pure Bi, Bi2Se3, Bi2O3 and thin Bi films deposited on several substrates (SiO2, CuOx) by Molecular Beam Epitaxy were analysed. The energy shift in the position of oscillations was observed when the oxygen atoms were present at the surface and bonded to Bi atoms. A description of the Bi ion yield variation is provided to facilitate the quantification process in LEIS.

Keywords

LEIS; Ion scattering; Low energy ions; Bismuth; Oscillations

Authors

VANÍČKOVÁ, E.; PRŮŠA, S.; ŠIKOLA, T.

Released

10. 5. 2024

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

1872-9584

Periodical

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIO

Year of study

553

Number

August

State

Kingdom of the Netherlands

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S0168583X24001551?via%3Dihub

BibTex

@article{BUT189670,
  author="Elena {Vaníčková} and Stanislav {Průša} and Tomáš {Šikola}",
  title="Signal oscillations in helium scattering by bismuth atoms in the low energy range",
  journal="NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIO",
  year="2024",
  volume="553",
  number="August",
  pages="7",
  doi="10.1016/j.nimb.2024.165385",
  issn="1872-9584",
  url="https://www.sciencedirect.com/science/article/pii/S0168583X24001551?via%3Dihub"
}