Regensburg 2010 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 10: Poster I

MA 10.5: Poster

Dienstag, 23. März 2010, 10:45–13:45, Poster A

High-field measurements of a spin-frustrated trinuclear copper (II) complex — •Wolfgang Kroener¹, Aksana Zharkouskaya², Eike T. Spielberg², Daniel Plaul², Klaus Gieb¹, Winfried Plass², and Paul Müller¹ — ¹Department of Physics and Interdisciplinary Center for Molecular Materials (ICMM), Universität Erlangen-Nürnberg, Germany — ²Institut für Anorganische und Allgemeine Chemie, Universität Jena, Germany

We present magnetic measurements of a trinuclear copper II complex based on triaminoguanidin (TAG): [Cu₃(bipy)₃(^HTAG)](ClO₄). A home-made micro-Hall-bar magnetometer and a commercial SQUID magnetometer were used to perform angle-resolved single crystal measurements. As the triangular structure of the complex suggests, we can conclude from our measurements, that we deal with a spin-frustrated system. Following a proposal of Trif et al.¹ we investigated the magnetization under high electric fields.
¹ M. Trif, F. Troiani, D. Stepanenko, D. Loss, Phys. Rev. Lett. 101, 217201 (2008).

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