HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Reflections on the spatial performance of atom probe tomography in the analysis of atomic neighbourhoods

Abstract : Atom probe tomography is often introduced as providing "atomic-scale" mapping of the composition of materials and as such is often exploited to analyse atomic neighbourhoods within a material. Yet quantifying the actual spatial performance of the technique in a general case remains challenging, as they depend on the material system being investigated as well as on the specimen's geometry. Here, by using comparisons with field-ion microscopy experiments and field-ion imaging and field evaporation simulations, we provide the basis for a critical reflection on the spatial performance of atom probe tomography in the analysis of pure metals, low alloyed systems and concentrated solid solutions (i.e. akin to high-entropy alloys). The spatial resolution imposes strong limitations on the possible interpretation of measured atomic neighbourhoods, and directional neighbourhood analyses restricted to the depth are expected to be more robust. We hope this work gets the community to reflect on its practices, in the same way, it got us to reflect on our work.
Document type :
Preprints, Working Papers, ...
Complete list of metadata

https://hal-normandie-univ.archives-ouvertes.fr/hal-03474777
Contributor : Benjamin Klaes Connect in order to contact the contributor
Submitted on : Friday, December 10, 2021 - 1:41:54 PM
Last modification on : Tuesday, January 4, 2022 - 6:40:19 AM

Links full text

Identifiers

  • HAL Id : hal-03474777, version 1
  • ARXIV : 2103.01665

Citation

Baptiste Gault, Benjamin Klaes, Felipe F. Morgado, Christoph Freysoldt, Yue Li, et al.. Reflections on the spatial performance of atom probe tomography in the analysis of atomic neighbourhoods. 2021. ⟨hal-03474777⟩

Share

Metrics

Record views

7