Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 34: Correlated Electrons: Frustrated Magnets - Chiral Magnets & RuCl₃

TT 34.8: Vortrag

Dienstag, 8. März 2016, 15:45–16:00, H20

Magnetic and Thermodynamic Characterisation of α-RuCl₃ — •Maximilian Geyer¹, Laura Theresa Corredor Bohorquez¹, Sebastian Gaß¹, Wolf Schottenhamel¹, Anja Wolter-Giraud¹, Anna Isaeva², Domenic Nowak², Thomas Doert², and Bernd Büchner^1,2 — ¹Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — ²Technische Universität Dresden, Helmholtzstraße 10, 01069 Dresden, Germany

The interplay between electronic correlations and spin-orbit coupling in heavy transition metal compounds has been intensively studied in the last years due to their interesting properties and unusual ground states like quantum spin liquids. Particulary α-RuCl₃ seems to be a suitable candidate for the experimental realisation of the Kitaev-Model due to its J_eff = 1/2 state and its layered honeycomb lattice of Ru³⁺ ions in the 4d⁵ configuration. This leads to highly anisotropic magnetic properties in this compound . We report on specific heat and magnetisation measurements for α-RuCl₃ single crystals grown by means of chemical transport reactions. Furthermore magnetisation experiments under high pressure were conducted on this compound.