Gregory Nordahl
About
Research area:
- Materials Physics
- Transmission Electron Microscopy
- Characterization of ferromagnetic domains
- Data processing and code development
Main supervisor: Associate Professor Magnus Nord
Co-supervisor: Professor Antonius T. J. van Helvoort
Teaching:
- Fall 2022: TFY4330 Nanotools - Laboratory assistant
- Spring 2022: TFY4220 Solid State Physics - Laboratory assistant
- Fall 2021: TFY4330 Nanotools - Laboratory assistant
- Spring 2021: TFY4106/25 Physics - Laboratory assistant
- Fall 2020: TFY4185 Measurement Techniques - Laboratory assistant
Background:
Master's degree in Applied Physics and Mathematics
Publications
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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Kelly, Oakes;
Nordahl, Gregory;
Nord, Magnus;
Christiansen, Emil.
(2023)
Solving a long-standing problem in transmission electron microscopy.
Norwegian SciTech News
Popular scientific article
-
Nordahl, Gregory;
Nord, Magnus.
(2023)
Improving Magnetic STEM-Differential Phase Contrast Imaging using Precession.
Microscopy and Microanalysis
Academic article
-
Nordahl, Gregory;
Dagenborg, Sivert Johan Vartdal;
Nord, Magnus Kristofer.
(2023)
Magnetic Field Mapping in STEM-DPC by Utilizing Artificial Neural Networks.
Microscopy and Microanalysis
Academic article
-
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
Academic article
-
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
Academic article
Journal publications
-
Nordahl, Gregory;
Jones, Lewys;
Christiansen, Emil;
Hunnestad, Kasper Aas;
Nord, Magnus.
(2023)
Correcting for probe wandering by precession path segmentation.
Ultramicroscopy
Short communication
-
Kelly, Oakes;
Nordahl, Gregory;
Nord, Magnus;
Christiansen, Emil.
(2023)
Solving a long-standing problem in transmission electron microscopy.
Norwegian SciTech News
Popular scientific article
-
Nordahl, Gregory;
Nord, Magnus.
(2023)
Improving Magnetic STEM-Differential Phase Contrast Imaging using Precession.
Microscopy and Microanalysis
Academic article
-
Nordahl, Gregory;
Dagenborg, Sivert Johan Vartdal;
Nord, Magnus Kristofer.
(2023)
Magnetic Field Mapping in STEM-DPC by Utilizing Artificial Neural Networks.
Microscopy and Microanalysis
Academic article
-
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
Academic article
-
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
Academic article
Knowledge Transfer
2023
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LectureNordahl, 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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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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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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Academic lectureNordahl, 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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Academic lectureBergh, 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
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Academic lectureBergh, 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
2022
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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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LectureNordahl, 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; 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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Academic lectureBergh, 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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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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Academic lectureNordahl, 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