Dresden 2026 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 7: Poster Magnetism I

MA 7.75: Poster

Montag, 9. März 2026, 09:30–12:30, P2

Investigating the Magnetic 3d-3d and 3d-4f Interaction in Triangular Cr₃^IIILn^III Complexes — •Rui Yang¹, Jan Arneth¹, Muthu Thangavel², Christopher Anson², Annie Powell², and Rüdiger Klingeler¹ — ¹Kirchhoff Institute for Physics, Heidelberg University, Germany — ²Institute for Inorganic Chemistry, Karlsruhe Institute of Technology, Germany

The interplay between the highly localized 4f electrons of the lanthanide ions and the more diffuse transition-metal 3d electrons leads to complex and often weak coupling mechanisms that are difficult to predict and quantify. Here, we report the static and dynamic magnetic properties of a series of isostrucural triangular Cr₃^IIILn^III (Ln^III = Y, Gd, Tb, Dy, Ho, Er, Yb) complexes studied by means of dc/ac magnetization and high-field EPR. In particular, we investigate the bare 3d-magnetism of the Cr^III-triangle which is realized for diamagnetic Ln=Y and systematically study the 3d-4f interaction in the series of paramagnetic Ln.

Keywords: High-Field Electron Paramagnetic Resonance; Single-molecule Magnets; Magnetic 3d-4f coupling