title: Quantitative Reconstructions of 3D Chemical Nanostructures in Nanowires.
abstract: Energy dispersive X-ray spectrometry is used to extract a quantitative 3D composition profile of heterostructured nanowires. The analysis of hypermaps recorded along a limited number of projections, with a preliminary calibration of the signal associated with each element, is compared to the intensity profiles calculated for a model structure with successive shells of circular, elliptic, or faceted cross sections. This discrete tomographic technique is applied to II-VI nanowires grown by molecular beam epitaxy, incorporating ZnTe and CdTe and their alloys with Mn and Mg, with typical size down to a few nanometers and Mn or Mg content as low as 10%.
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.|CEA, INAC, F-38000 Grenoble, France.
authors.forename: P
authors.initials: P
authors.lastname: Rueda-Fonseca
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CEA, INAC, F-38000 Grenoble, France.
authors.forename: E
authors.initials: E
authors.lastname: Robin
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CEA, INAC, F-38000 Grenoble, France.
authors.forename: E
authors.initials: E
authors.lastname: Bellet-Amalric
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CEA, INAC, F-38000 Grenoble, France.|FEI Company , P.O. Box 80066, KA 5600 Eindhoven, The Netherlands.
authors.forename: M
authors.initials: M
authors.lastname: Lopez-Haro
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: M
authors.initials: M
authors.lastname: Den Hertog
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Genuist
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: R
authors.initials: R
authors.lastname: André
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: A
authors.initials: A
authors.lastname: Artioli
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: S
authors.initials: S
authors.lastname: Tatarenko
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: D
authors.initials: D
authors.lastname: Ferrand
authors.affiliation: Université Grenoble Alpes , F-38000 Grenoble, France.|CNRS, Institut NEEL, F-38000 Grenoble, France.
authors.forename: J
authors.initials: J
authors.lastname: Cibert
keywords: core−shell nanowires; electron microscopy.; energy dispersive X-ray spectrometry; nanowires; quantum dots