Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 15: Poster I
MA 15.7: Poster
Tuesday, March 18, 2025, 10:00–12:30, P1
A single crystal study of the kagome magnets RMn6Sn6 — •Ana Kurtanidze1,2, Shingo Yamamoto1, Klara Uhlirova3, Yurii Skourski1, Sergei Zherlitsyn1, Jeremy Sourd1, and Joachim Wosnitza1,2 — 1Hochfeld-Magnetlabor Dresden (HLD-EMFL), HZDR, Dresden, Germany — 2Institut für Festkörper- und Materialphysik, TU Dresden,Germany — 3Materials Growth and Measurement Laboratory (MGML), Charles University, Prague, Czech Republic
The kagome magnets RMn6Sn6 (R = Sc, Y, Gd-Lu) with hexagonal structure (P6/mmm) attract attention due to a possible correlation between the observed topological electronic properties and various magnetic phases. We synthesized high-quality single crystals of RMn6Sn6 (R = Er and Tm) by a tin-flux method. We performed scanning electron microscopy, energy-dispersive x-ray spectroscopy, and wavelength dispersive x-ray fluorescence measurements to characterize the phase purity of the samples, which showed a composition close to the nominal stoichiometric ratio. We observed approximately 0.25 at.% aluminum impurity, which originated from the alumina crucibles used. In addition to the chemical characterization, we will discuss the magnetic properties from our preliminary magnetization results under magnetic fields applied along the principal crystallographic axes.
Keywords: Topology; Kagome magnets; Single crystal growth; Flux method; Field-induced transition