Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 21: Poster I

MA 21.66: Poster

Dienstag, 13. März 2018, 09:30–13:00, Poster A

The structural and magnetic properties of Fe-Sn ferromagnetic compounds — •Bahar Fayyazi, Konstantin Skokov, Tom Faske, and Oliver Gutfleisch — Technische Universität Darmstadt, Germany

Uniaxial ferromagnets with high anisotropy composed of earth-abundant elements are of interest for development of new permanent magnets. Potentially, high values of anisotropy energy are possible in 3d compounds. The Fe-Sn system contains 3 ferromagnetic compounds, namely Fe3Sn, Fe5Sn3, and Fe3Sn2 [1]. In this work, the intrinsic magnetic properties such as spontaneous magnetization, anisotropy field and Curie temperature were obtained for the Fe-Sn compounds by measurements on single crystals. The magnetic measurements were performed along 3 crystallographic directions [001], [100] and [120] of the hexagonal structure in a temperature range of 5-600K. The change of anisotropy with temperature and occurrence of spin reorientation transition will be discussed. Additionally, the structural properties of them measured on single crystal diffractometer will be reported.

[1] Fayyazi, B., et al., Bulk combinatorial analysis for searching new rare-earth free permanent magnets: Reactive crucible melting applied to the Fe-Sn binary system. Acta Materialia, 2017. 141: p. 434-443.