Gregory Nordahl
Om
Forskning:
- Materialfysikk
- Transmisjonselektronmikroskopi
- Karakterisering av ferromagnetiske domener
- Databehandling og kodeutvikling
Hovedveileder: Førsteamanuensis Magnus Nord
Medveileder: Professor Antonius T. J. van Helvoort
Undervisning:
- Høst 2022: TFY4330 Nanoverktøy - Labassistent
- Vår 2022: TFY4220 Faste Stoffers Fysikk - Labassistent
- Høst 2021: TFY4330 Nanoverktøy - Labassistent
- Vår 2021: TFY4106/25 Fysikk - Labassistent
- Høst 2020: TFY4185 Måleteknikk - Labassistent
Bakgrunn:
Mastergrad i Anvendt Fysikk og Matematikk
Publikasjoner
2023
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Nordahl, Gregory;
Jones, Lewys;
Christiansen, Emil;
Hunnestad, Kasper Aas;
Nord, Magnus.
(2023)
Correcting for probe wandering by precession path segmentation.
Ultramicroscopy
Short communication
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Nordahl, Gregory;
Nord, Magnus.
(2023)
Improving Magnetic STEM-Differential Phase Contrast Imaging using Precession.
Microscopy and Microanalysis
Vitenskapelig artikkel
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Bergh, Tina;
Holmestad, Randi;
Christiansen, Emil;
Thronsen, Elisabeth;
Nordahl, Gregory;
Nord, Magnus.
(2023)
Scanning Electron Diffraction: To Precess or not to Precess?.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Dagenborg, Sivert Johan Vartdal;
Liu, Yu;
Hallsteinsen, Ingrid Gullikstad;
Nordahl, Gregory;
Nord, Magnus.
(2023)
Acquisition and Processing of Magnetic Data from LN2 Cooled Perovskite Thin Films Using STEM-DPC.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Nordahl, Gregory;
Dagenborg, Sivert Johan Vartdal;
Nord, Magnus Kristofer.
(2023)
Magnetic Field Mapping in STEM-DPC by Utilizing Artificial Neural Networks.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Kelly, Oakes;
Nordahl, Gregory;
Nord, Magnus;
Christiansen, Emil.
(2023)
Solving a long-standing problem in transmission electron microscopy.
Norwegian SciTech News
Populærvitenskapelig artikkel
Tidsskriftspublikasjoner
-
Nordahl, Gregory;
Jones, Lewys;
Christiansen, Emil;
Hunnestad, Kasper Aas;
Nord, Magnus.
(2023)
Correcting for probe wandering by precession path segmentation.
Ultramicroscopy
Short communication
-
Nordahl, Gregory;
Nord, Magnus.
(2023)
Improving Magnetic STEM-Differential Phase Contrast Imaging using Precession.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Bergh, Tina;
Holmestad, Randi;
Christiansen, Emil;
Thronsen, Elisabeth;
Nordahl, Gregory;
Nord, Magnus.
(2023)
Scanning Electron Diffraction: To Precess or not to Precess?.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Dagenborg, Sivert Johan Vartdal;
Liu, Yu;
Hallsteinsen, Ingrid Gullikstad;
Nordahl, Gregory;
Nord, Magnus.
(2023)
Acquisition and Processing of Magnetic Data from LN2 Cooled Perovskite Thin Films Using STEM-DPC.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Nordahl, Gregory;
Dagenborg, Sivert Johan Vartdal;
Nord, Magnus Kristofer.
(2023)
Magnetic Field Mapping in STEM-DPC by Utilizing Artificial Neural Networks.
Microscopy and Microanalysis
Vitenskapelig artikkel
-
Kelly, Oakes;
Nordahl, Gregory;
Nord, Magnus;
Christiansen, Emil.
(2023)
Solving a long-standing problem in transmission electron microscopy.
Norwegian SciTech News
Populærvitenskapelig artikkel
Formidling
2024
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Faglig foredragPennycook, Timothy; Carter, Francis; Nord, Magnus; Bergh, Tina; Nordahl, Gregory; Bjørge, Ruben. (2024) NordTEMhub Workshop. NTNU NordTEMhub Workshop , Trondheim 2024-06-11 - 2024-06-13
2023
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Vitenskapelig foredragBergh, Tina; Holmestad, Randi; Christiansen, Emil; Thronsen, Elisabeth; Nordahl, Gregory; Nord, Magnus. (2023) Stepping and turning the electron beam and getting more out of the TEM data. NTNU Nano Norwegian Nano-symposium , Trondheim 2023-11-28 - 2023-11-29
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PosterDagenborg, Sivert Johan Vartdal; Liu, Yu; Hallsteinsen, Ingrid Gullikstad; Nordahl, Gregory; Nord, Magnus. (2023) Acquisition and Processing of Magnetic Data from LN2 Cooled Perovskite Thin Films Using STEM-DPC. Microscopy Society of America Microscopy and MicroAnalysis 2023 , Minneapolis, Minnesota 2023-07-23 - 2023-07-27
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Faglig foredragNordahl, Gregory. (2023) Differential Phase Contrast for imaging of magnetic materials, and Scanning Precession Electron Diffraction - from principles to dealing with the drawbacks. Jozef Stefan Institute AdSTEM3 European School on 4D STEM Imaging , National Institute of Biology - Marine Biology Station Piran 2023-05-14 - 2023-05-18
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Vitenskapelig foredragNordahl, Gregory. (2023) Magnetic field mapping in STEM-DPC by utilizing artificial neural networks. Microscopy & Microanalysis , Minneapolis, MN 2023-07-23 - 2023-07-27
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PosterDagenborg, Sivert Johan Vartdal; Liu, Yu; Hallsteinsen, Ingrid Gullikstad; Folven, Erik; Nordahl, Gregory; Nord, Magnus. (2023) STEM-DPC magnetic analysis of epitaxial perovskite thin films using 4D-STEM and liquid nitrogen cooling. International Federation of Societies for Microscopy. The 20th International Microscopy Congress , Busan 2023-09-10 - 2023-09-15
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Vitenskapelig foredragBergh, Tina; Holmestad, Randi; Christiansen, Emil; Thronsen, Elisabeth; Nordahl, Gregory; Nord, Magnus. (2023) Scanning Electron Diffraction: To Precess or not to Precess? . Microscopy Society America Microscopy and Analysis , Minneapolis 2023-07-23 - 2023-07-27
2022
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Vitenskapelig foredragBergh, Tina; Thronsen, Elisabeth; Christiansen, Emil Frang; Frafjord, Jonas; Thorsen, Tor Inge; Nordahl, Gregory. (2022) Scanning precession electron diffraction for phase mapping . Electron diffraction for solving engineering problems 2022-06-21 - 2022-06-23
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PosterNordahl, Gregory; Dagenborg, Sivert Johan Vartdal; Nord, Magnus Kristofer. (2022) Utilizing neural networks for nanoscale magnetic field mapping with STEM-DPC. TNNN TNNN , NTNU Kalvskinnet 2022-11-30 - 2022-12-02
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Faglig foredragNordahl, Gregory. (2022) Introduction to STEM-DPC processing. ESTEEM3 Workshop on electron diffraction for solving engineering problems , NTNU 2022-06-21 - 2022-06-23
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PosterNordahl, Gregory; Jones, Lewys; Christiansen, Emil; Hunnestad, Kasper Aas; Nord, Magnus Kristofer. (2022) Precession segmentation to increase SPED image resolution. Ernst Ruska-Centre (ER-C) for Microscopy and Spectroscopy with Electrons PICO2022 , Netherlands 2022-05-08 - 2022-05-12
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PosterLiu, Yu; Brzozowski, Damian; Dagenborg, Sivert Johan Vartdal; Nordahl, Gregory; Nord, Magnus; Hallsteinsen, Ingrid Gullikstad. (2022) FIB Plan-view sample routine of complex magnetic oxide thin films for STEM-DPC. Myfab Chalmers, Chalmers University of Technology Nordic Nanolab User Meeting , Gothenburg, Sweden 2022-05-05 - 2022-05-06
2021
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Vitenskapelig foredragNordahl, Gregory; McGrouther, Damien; Nord, Magnus. (2021) Improved magnetic field mapping of Fe60Al40 embedded nanomagnets by precession-corrected STEM-DPC. Institute of Physics (IoP) Electron Microscopy and Analysis Group (EMAG) 2021-07-05 - 2021-07-08