Detail publikace

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

VANÍČKOVÁ, E. PRŮŠA, S. ŠIKOLA, T.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

VANÍČKOVÁ, E.; PRŮŠA, S.; ŠIKOLA, T.

Vydáno

10. 5. 2024

Nakladatel

ELSEVIER

Místo

AMSTERDAM

ISSN

1872-9584

Periodikum

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

Ročník

553

Číslo

August

Stát

Nizozemsko

Strany počet

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"
}