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Enhanced dynamic reconstruction for atom probe tomography
Ultramicroscopy, 2019Many studies have focussed on the optimization of atom probe tomography data reconstruction. In this article, an enhanced dynamic reconstruction algorithm based on the approach initially developed by Gault et al. in 2011 is proposed. The dynamic reconstruction takes into account the evolution of the reconstruction parameters during the field ...
Hatzoglou, Constantinos +2 more
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Atom Probe Tomography of Nanowires
2015Abstract Atom probe tomography (APT) is a destructive material characterization technique that can analyze the composition of small volumes (~ 100 × 100 × 100 nm 3 ) of a sample with subnanometer resolution and part per million sensitivity. APT is therefore well suited to investigate semiconductor nanostructures in order to relate growth conditions ...
Nari Jeon, Lincoln J. Lauhon
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Atom probe tomography of nanostructures
Surface and Interface Analysis, 2014Atom probe tomography (APT) constitutes a rather unique analytical technique for the 3D elemental characterization of solid materials with potentially sub‐nm spatial resolution. APT is, therefore, very well suited for the analysis of a nanostructured specimen such as matrix‐embedded nanoparticles, ultra‐thin films and junctions, grain boundaries, and ...
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Atom Probe Tomography: 3D Imaging at the Atomic Level
2011Atom probe tomography (APT) is the only approach able to map out the 3D distribution of chemical species in a material at the atomic-scale. The instrument provides quantitative measurements of local chemical composition in a small selected volume at the nm scale. The in-depth spatial resolution reaches a few tens of picometres enabling atomic layers to
Blavette, D. +3 more
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Pragmatic reconstruction methods in atom probe tomography
Ultramicroscopy, 2011Data collected in atom probe tomography have to be carefully analysed in order to give reliable composition data accurately and precisely positioned in the probed volume. Indeed, the large analysed surfaces of recent instruments require reconstruction methods taking into account not only the tip geometry but also accurate knowledge of geometrical ...
Vurpillot, François +5 more
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Introduction to Atom-Probe Tomography
2014This book describes both current atom-probe tomography (APT) practice and knowledge of related emission science. The atomic-level materials characterization technique of APT is currently the only technique able to detect individual atoms of all elements in a three-dimensional structure.
Michael K. Miller, Richard G. Forbes
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Atom probe tomography analysis of WC powder
Ultramicroscopy, 2013A tantalum doped tungsten carbide powder, (W,Ta)C, was prepared with the purpose to maximise the amount of Ta in the hexagonal mixed crystal carbide. Atom probe tomography (APT) was considered to be the best technique to quantitatively measure the amount of Ta within this carbide. As the carbide powder consisted in the form of very small particles (
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