Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 13: Magnetic Materials II

MA 13.2: Vortrag

Dienstag, 8. März 2016, 09:45–10:00, H31

Magnetic phase diagram of HoCu — •Wolfgang Simeth¹, Marein Rahn², Michael Wagner¹, Nives Bonacic¹, Anatoliy Senyshyn³, Martin Meven³, Sebastian Mühlbauer³, Andre Heinemann³, Tobias Weber³, Tobias Schrader³, Andreas Bauer¹, Robert Georgii³ und Christian Pfleiderer¹ — ¹Technische Universität München — ²Oxford University — ³Heinz Maier-Leibnitz (FRM II)

The rare-earth system HoCu orders in the centrosymmetric CsCl-structure. As a consequence of several competing interactions (CEF as well as itinerant, indirect, and quadrupolar exchange interactions), the localised 4f magnetic moments of the Ho-atoms order in complex multiaxial arrangements [1]. We report the magnetic field dependence of the magnetic order up to 14 T as inferred from neutron diffraction and selected bulk properties (magnetization, ac susceptibility, and electrical transport).

[1] P. Morin and D. Schmitt, J. Magn. Magn. Mater. 21, 243 (1980)