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MA: Fachverband Magnetismus

MA 59: Posters Magnetism III

MA 59.44: Poster

Freitag, 20. März 2020, 09:00–12:00, P2/EG

Exotic magnetism in novel RE₃Fe₃Sb₇ compounds — •S. Palazzese¹, S. Chattopadhyay¹, M. Uhlarz¹, S. Yamamoto¹, F. Pabst³, T. Herrmannsdörfer¹, J. Wosnitza^1,2, and M. Ruck³ — ¹Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf — ²Institut für Festkörper-und Materialphysik, TU Dresden — ³Fakultät für Chemie und Lebensmittelchemie, TU Dresden

Here we present a DC magnetization study of novel RE₃Fe₃Sb₇ (RE = Pr, Nd, Sm) compounds with hexagonal crystalline structure P6₃/m. Measurements are performed at temperatures from 2 to 400 K and fields up to 7 T by means of SQUID magnetometry on single crystals. We observe a plethora of magnetic phase transitions at temperatures below 390 K. We show that the B-T phase diagram varies with the chemical RE composition of the compound and anisotropic magnetic behavior is observed for different orientations. Below 20 K, we observe a wide magnetic hysteresis loop, while at higher temperatures soft-magnetic behavior is found. Our results suggest strong evidence for the occurence of ferrimagnetic compensation points for each compound.