SKM 2023 – wissenschaftliches Programm
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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. Palazzese1,2, F. Pabst3, S. Chattopadhay1, Sh. Yamamoto1, T. Herrmannsdoerfer1, D. Gorbunov1, E. Weschke4, O. Prokhnenko4, H. Nojiri5, T. Doert3, B. Lake4,6, J. Wosnitza1,2, 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.