1. ABOUT THE DATASET -------------------- Title: Strain-coupled domains in BaTiO3(111)-CoFeB heterostructures Creator(s): Robbie G. Hunt, Kevin J. A. Franke, Philippa M. Shepley, Thomas A. Moore Organisation(s): University of Leeds Rights-holder(s):Unless otherwise stated, Copyright 2022 University of Leeds Publication Year: 2023 Description: The dataset represents imaging and magnetic characterization of CoFeB thin film deposited onto a BaTiO3 (111)-oriented substrate using a polarized microscope. Included in this are images of ferroelectric domains from the BaTiO3 substrate, magnetic domains from the CoFeB thin film and hysteresis loops obtained by a magneto-optic Kerr measurement restricted to regions of the CoFeB film coupled to singular ferroelectric domains. Alongside this are the input files used to simulate the micromagnetic characteristics using the results obtained as a result of this imaging and characterization. Cite as: Hunt, R., Franke, K., Shepley, P., Moore, T. (2023), Dataset for 'Strain-coupled Domains in BaTiO3(111)-CoFeB heterostructures', University of Leeds. https://doi.org/10.5518/1282 Related publication: Contact: py15rh@leeds.ac.uk, robbiehunt45@gmail.com or t.a.moore@leeds.ac.uk 2. TERMS OF USE --------------- [A standard copyright notice and licence statement with URL can be used, e.g. Copyright [publication year] [University of Leeds, name of other rights-holder(s)]. Unless otherwise stated, this dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/.] 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: Voltage Control of Chiral Spin Structures Dates: 1 November 2018 -30 November 2021 Funding organisation: Marie Sklodowska-Curie Horizon 2020 Grant no.: 750147 Title: EPSRC DTA Studentship Dates: 1 October 2019 - 1 October2023 Funding organisation: Engineering and Physical Sciences Research Council (EPSRC) Grant no.: EP/M000923/1 [Include in this section acknowledgements of all relevant funding sources, including e.g. public and charitable funders, industrial sponsors, and the University. If the dataset was not generated as part of a specific project or with dedicated project funding, you can say e.g. 'This dataset was not created in the course of a funded project.'] 4. CONTENTS ----------- File listing - MOKE Imaging All images and hysteresis loops obtained using the polarized kerr microscope that were then further processed and analyzed. Inside this folder are four folders that contain the the data required to produces figures 2, 3, 4, 5 and 6 from the main paper. 'BTO5s7' refers to the sample measured within this paper. In the filenames, the 'trans' or 'long' naming convention is shorthand for 'transverse' or 'longitudinal', used to make clear the direction of magnetic field application and magnetic contract used to generate an image. Subfolders may be numbered - this was a convention used to differentiate images taken from different regions within a measurement period. - Mumax Files Input files used to generate the micromagnetic simulations and which can be used to re-create the results by running the input files on an instance of MuMax3. - SQUID magnetometry Hysteresis loop of the entire sample taken using a SQUID-VSM at room temperature and used to extract the saturation magnetization of the CoFeB thin film. 5. METHODS ---------- - Imaging and hysteresis loops presented were obtained by Kerr microscopy using an Evico Magneto-optical Kerr Microscope, described in 'Review of Scientific Instruments 88, 073701 (2017); https://doi.org/10.1063/1.4991820'. Image processing was primarily performed using the accompanying KerrLab software package, with some additional processing of polarized images performed using ImageJ available for free online. - Simulations were performed using the micromagnetic MuMax3 software package, for more detail see 'AIP Advances 4, 107133 (2014); https://doi.org/10.1063/1.4899186'. - Magnetometry was performed using a Quantum Design MPMS3 Magnetometer.