SKM 2021 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 5: Posters Magnetism II

MA 5.15: Poster

Dienstag, 28. September 2021, 10:00–13:00, P

Single-Crystal Growth and Low-Temperature Properties of ErB₂ — •Christoph Resch¹, Georg Benka^1,2, Andreas Bauer¹, and Christian Pfleiderer¹ — ¹Physik Department E51, Technische Universität München, 85748 Garching, Germany — ²Kiutra GmbH Rupert-Mayer-Str. 4481379 Munich, Germany

Single crystals of the hexagonal rare-earth diboride ErB₂ were synthesized by means of the self-adjusted flux travelling solvent optical floating zone technique. The magnetic phase diagram was inferred from measurements of the magnetization and the ac susceptibility as a function of magnetic field and temperature for fields up to 14 T applied along major crystallographic axes. We find behavior characteristic of a hard-axis-easy-plane antiferromagnet. Magnetoresistivity and hall effect measurements up to 20 T exhibit a field dependence that may not be accounted for by standard normal and anomalous contributions, suggesting non-collinear antiferromagnetic order as potential origin.