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MA: Fachverband Magnetismus

MA 40: Poster Magnetism II

MA 40.41: Poster

Donnerstag, 30. März 2023, 14:00–16:00, P2/EG

Development of an AC susceptometer for magnetic thin film systems — •Matthias Zetzl, Grace Causer, and Christian Pfleiderer — Physik-Department, Technical University of Munich, D-85748 Garching, Germany

An ongoing challenge in thin film magnetism concerns the need for easy-to-use characterization tools exploiting the response to alternating magnetic fields. We report the development of a bespoke ac-susceptometer comprising a primary and a balanced pair of secondaries specifically tailored for thin film systems. To gauge the performance of the susceptometer we have revisited the properties of epitaxial layers of MnSi in the thick film limit, in which high-resolution measurements of the temperature and field history of the magnetization, complemented by neutron scattering and neutron reflectometry, have recently identified the formation of a cascade of solitonic layers.