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MA: Fachverband Magnetismus

MA 40: Poster Magnetism II

MA 40.58: Poster

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

Unconventional Spin State Driven Spontaneous Magnetization in RE₃Fe₃Sb₇ — •S. Palazzese^1,2, F. Pabst³, S. Chattopadhay¹, Sh. Yamamoto¹, T. Herrmannsdoerfer¹, D. Gorbunov¹, E. Weschke⁴, O. Prokhnenko⁴, H. Nojiri⁵, T. Doert³, B. Lake^4,6, J. Wosnitza^1,2, and M. Ruck³ — ¹Hochfeld-Magnetlabor Dresden (HLD-EMFL), HZDR, Dresden, Germany — ²Institut für Festkörperund Materialphysik, Technische Universität Dresden (TUD), Germany — ³Fakultät für Chemie und Lebensmittelchemie, TUD, Germany — ⁴Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), Berlin, Germany — ⁵Institute for Materials Research, Tohoku University, Sendai, Japan — ⁶Institut für Festkörperphysik, Technische Universität Berlin, Germany

Consolidating a microscopic understanding of magnetic properties is crucial for a rational design of magnetic materials with tailored characteristics. The interplay of 3d and 4f magnetism in rare-earth transition metal antimonides is an ideal platform to search for such complex behavior. Here we present a detailed magnetization and electrical-transport study of novel RE₃Fe₃Sb₇ compounds. RE₃Fe₃Sb₇ shows a an emergent spontanoeus magnetization in zero applied field and a kink in the temperature-dependent resistivity, indicating a symmetry breaking at the spin-reorientation transition (SRT). Our XMCD and additional neutron scattering results reveal an unusual antiparallel alignment of Pr and Fe magnetic moments.