Grants per year
Personal profile
Research Interests
The research in my group concentrates on understanding the behavior of magnetic, ferroelecctric and multiferroic oxide nanostructures, and in particular on determining the role that interfaces play in controlling this behavior. We are correlating the ferroic and transport properties with microstructure, magnetic domain structure and composition profile, determined using a range of high-resolution electron-microscopy, atomic force microscopy and position-sensitive atom probe techniques, including Lorentz microscopy for imaging magnetic domains and piezoforce microscopy for imaging ferroelectric domains. We are also developing in-situ TEM techniques for the investigation of magnetization reversal and transport behavior.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Materials Science, DPhil, University of Oxford
… → 1985
Physics (Hons) Class 2i, BSc, University College London
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Collaborations and top research areas from the last five years
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Control of Magnetic Domains in 2D van der Waals ferromagnets
Petford-Long, A. K. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
12/1/24 → 5/31/25
Project: Research project
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Mapping Atomic Scale Topological Excitations in Quantum Materials
Petford-Long, A. K. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
9/1/24 → 8/31/25
Project: Research project
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Exploring Role of Disorder on Artificial Spin Ices
Petford-Long, A. K. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
9/1/24 → 11/30/24
Project: Research project
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Exploration of skyrmion lattice behavior in 2-D materials
Petford-Long, A. K. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
12/6/22 → 11/30/23
Project: Research project
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Exploring Role of Disorder on Artificial Spin Ices
Petford-Long, A. K. (PD/PI) & Petford-Long, A. K. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
9/1/22 → 8/31/24
Project: Research project
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Observation of Topological Spin Textures in Ferrimagnetic Mn2 − xZnxSb
Li, Y., Nabi, M. R. U., Park, H., Liu, Y., Rosenkranz, S., Petford-Long, A. K., Hu, J., Velthuis, S. G. E. T. & Phatak, C., 2025, (Accepted/In press) In: Small.Research output: Contribution to journal › Article › peer-review
Open Access -
Real Space Imaging of Field-Driven Decision-Making in Nanomagnetic Galton Boards
Arava, H., Sanz-Hernandez, D., Grollier, J. & Petford-Long, A. K., Feb 28 2025, In: Physical review letters. 134, 8, 086704.Research output: Contribution to journal › Article › peer-review
Open Access -
AI-enabled Lorentz microscopy for quantitative imaging of nanoscale magnetic spin textures
McCray, A. R. C., Zhou, T., Kandel, S., Petford-Long, A., Cherukara, M. J. & Phatak, C., Dec 2024, In: npj Computational Materials. 10, 1, 111.Research output: Contribution to journal › Article › peer-review
Open Access -
Evaluation of Phase Reconstruction Techniques in Quantitatively Analyzing Nanoscale Magnetic Materials
Mendoza Trujillo, K. L., Ni, H., Varnavides, G., Chi, M., Ophus, C., Petford-Long, A. K. & Phatak, C., Jul 24 2024, In: Microscopy and Microanalysis. 30, 2024, p. 1023-1024 2 p.Research output: Contribution to journal › Conference article › peer-review
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ML-Enabled Single Image Magnetic Phase Reconstruction for Lorentz Transmission Electron Microscopy
McCray, A. R. C., Zhou, T., Li, Y., Kandel, S., Petford-Long, A., Cherukara, M. J. & Phatak, C., Jul 24 2024, In: Microscopy and Microanalysis. 30, 2024, p. 1025-1026 2 p.Research output: Contribution to journal › Conference article › peer-review
Datasets
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Real-space Observation of Magnetic Excitations and Avalanche Behavior in Artificial Quasicrystal Lattices
Brajuskovic, V. (Creator), Barrows, F. (Creator), Phatak, C. (Creator) & Petford-Long, A. K. (Creator), Materials Data Facility, May 5 2017
DOI: 10.18126/m22p48, https://www.materialsdatafacility.org/detail/pub_98_brajuskovic_realspace_v1.2
Dataset