Surface dynamics of field evaporation in silicon carbide

S Ndiaye, C Bacchi, B Klaes, M Canino… - The Journal of …, 2023 - ACS Publications
Silicon carbide (SiC) may be considered as a model system for the study of field ion
evaporation of carbides, which must be understood to perform accurate analyses of these …

[HTML][HTML] Is it meaningful to quantify vacancy concentrations of nanolamellar (Ti, Al) N thin films based on laser-assisted atom probe data?

M Hans, M Tkadletz, D Primetzhofer, H Waldl… - Surface and Coatings …, 2023 - Elsevier
Recently, it was proposed to quantify vacancy concentrations based on laser-assisted atom
probe tomography (APT) data for a (Ti, Al) N film with a nanolamellar architecture, grown by …

[HTML][HTML] Atom probe tomography investigation of 3D nanoscale compositional variations in CVD TiAlN nanolamella coatings

R Qiu, H Aboulfadl, O Bäcke, D Stiens… - Surface and Coatings …, 2021 - Elsevier
Abstract The cubic (Ti 1− x Al x) N y (TiAlN) phase with a nanolamella structure, synthesized
via low pressure chemical vapour deposition (LPCVD), has been widely used in wear …

[HTML][HTML] Influence of multiple detection events on compositional accuracy of TiN coatings in atom probe tomography

M Schiester, H Waldl, M Hans, M Thuvander… - Surface and Coatings …, 2024 - Elsevier
The accuracy of composition measurements by atom probe tomography is often dependent
on the selected operation mode as well as the applied measurement parameters. The …

Field dependent study on the impact of co-evaporated multihits and ion pile-up for the apparent stoichiometric quantification of GaN and AlN

RJH Morris, R Cuduvally, JR Lin, M Zhao… - Ultramicroscopy, 2022 - Elsevier
For atom probe tomography, multihits and any associated ion pile-up are viewed as an
“Achilles” heel when trying to establish accurate stoichiometric quantification. A significant …

Compositional accuracy in atom probe tomography analyses performed on III-N light emitting diodes

E Di Russo, N Cherkashin, M Korytov… - Journal of Applied …, 2019 - pubs.aip.org
Laser-assisted atom probe tomography (APT) and high-resolution dark-field electron
holography (HR-DFEH) were performed to investigate the composition of a polar [0001] …

Electric field strength-dependent accuracy of TiAlN thin film composition measurements by laser-assisted atom probe tomography

M Hans, JM Schneider - New Journal of Physics, 2020 - iopscience.iop.org
Accurate quantification of absolute concentrations represents a major challenge for atom
probe tomography (APT) since the field evaporation process is affected significantly by the …

Atom probe of GaN/AlGaN heterostructures: The role of electric field, sample crystallography and laser excitation on quantification

RJH Morris, R Cuduvally, D Melkonyan, M Zhao… - Ultramicroscopy, 2019 - Elsevier
Scaling and non-planar architectures are key factors helping to advance the semiconductor
field. Accurate 3-dimensional atomic scale information is therefore sought but this presents a …

Exploring biases in atom probe tomography compositional analysis of minerals

C Cappelli, S Smart, H Stowell… - Geostandards and …, 2021 - Wiley Online Library
Atom probe tomography (APT) is emerging as a key nanogeochemistry technique for
diverse geoscience applications. Estimating stoichiometric mineral compositions is …

Atom probe tomography using an extreme ultraviolet trigger pulse

BW Caplins, AN Chiaramonti, JM Garcia… - Review of Scientific …, 2023 - pubs.aip.org
Atom probe tomography (APT) is a powerful materials characterization technique capable of
measuring the isotopically resolved three-dimensional (3D) structure of nanoscale …