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Dr Lesleis Nagy

Research

My research focuses on fundamental rock magnetism, specifically using advanced simulation techniques and numerical modeling to understand how magnetic particles in rocks and meteorites record and preserve information about ancient magnetic fields over geological timescales. I develop and apply parallelized micromagnetic finite element models to investigate magnetic domain structures in magnetic minerals across different size ranges—from single-domain to pseudo-single-domain to multi-domain states. A key focus of my work is understanding the thermal stability and recording fidelity of magnetic remanence, including how factors such as cooling rate, particle size, shape, and magnetic domain configurations (for example single-vortex states) affect the reliability of paleomagnetic records. This research has important implications not only for interpreting paleomagnetic data from terrestrial rocks and extraterrestrial materials, but also for applications in materials science, data storage technologies, and other fields where understanding magnetic behavior at the nanoscale is critical.

Research grants

NSFGEO-NERC: The history of the Earth's magnetic field strength over the last five million years: Filling in the southern hemisphere gap

NATURAL ENVIRONMENT RESEARCH COUNCIL

January 2024 - June 2026

MicroPI: A micromagnetic approach to absolute palaeointensity determinations

NATURAL ENVIRONMENT RESEARCH COUNCIL

June 2024 - May 2027

VIRGIL: The VIRtual paleomaGnetIc Laboratory

NATURAL ENVIRONMENT RESEARCH COUNCIL

March 2022 - February 2027