Characterizing ferromagnetic domains in ring structures using in-situ magnetic Fresnel imaging

This deposit contains supplementary datasets and data processing scripts used in a Specialization Project by Rajith Aravinth at the Norwegian University of Science and Technology (NTNU).

Dataset:

2021_03_26_FA721_A6.5_in_situ_stack.hspy

Sample FA721, window W1, ring A6.5um, objective lens 0768.
Tilting range [-2.0, 2.0] deg. in X and [-2.0, 2.0] deg. in Y, step size 1.0 deg.

Python files:
processing.py

utils.py

p001_make_hyperspy.py

Running processing.py produces the domains and areas as numpy files, that can be used for visualisation and quantifications.
Looping through the whole dataset takes quite some time, hence the results are also to be found in the .npy files.

# Numpy files
areas.npy

domains.npy

Notebook:

Jupyter_notebook.ipynb
More detail overlook of the algorithm, with visualizations and result