Published March 12, 2021 | Version 1.0.1
Dataset Open

Atomic resolution HOLZ-STEM imaging of atom position modulation in oxide heterostructures

  • 1. School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
  • 2. Ernst Ruska-Centre (ER-C 2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
  • 3. electron Physical Science Imaging Centre, Diamond Light Source Ltd., OX11 0DE, UK
  • 4. Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK

Description

Dataset and python processing scripts for the journal article "Atomic resolution HOLZ-STEM imaging of atom position modulation in oxide heterostructures"

DOI for the journal article: https://doi.org/10.1016/j.ultramic.2021.113296

There are two types of data in this deposit, experimental and simulated:

  • The simulated is contained in the sim_data_deposit.zip file
  • The experimental is in the "root" folder. This is in the form of the raw data files themselves, the python scripts and the intermediate files.

The experimental data

The raw, original, dataset is 011_big_film_512x512.emd. Which is a hdf5-file following the EMD (NCEM) standard. In addition, a reconverted version of this file, with a more optimized internal structure, which can be loaded directly in HyperSpy and pyXem is included (011_big_film_512x512_updated.hspy).

The python processing files are intended to be run from the first, a000, to the last b010. In the order a000, a001, a002, .... b000, b001, ...

The python library and version requirements are found in requirements.txt. The most important ones being HyperSpy and pixStem. Note that pixStem has been merged with the pyXem project, but the pixStem code will remain available for the foreseeable future.

The 011_big_film_512x512_updated.hspy is included for convenience, to make it easier to explore the data with more recent versions of HyperSpy and pyXem. In addition, it has a more optimized internal structure (via more optimized chunking). To view it, install HyperSpy and load the data:

import hyperspy.api as hs
s = hs.load("011_big_film_512x512_updated.hspy")
s.plot()

 

Files

b008_atomic_diffraction_corrected.jpg

Files (55.3 GB)

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Additional details

Related works

Is cited by
Journal article: 10.1016/j.ultramic.2021.113296 (DOI)

Funding

MAGIMOX – Nanometre scale imaging of magnetic perovskite oxide thin films using scanning transmission electron microscopy 838001
European Commission
Fast Pixel Detectors: a paradigm shift in STEM imaging EP/M009963/1
UK Research and Innovation