Berlin 2012 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
DS: Fachverband Dünne Schichten
DS 19: Poster I: Multiferroics (jointly with MA, DF, KR, TT), Spins in organic materials (jointly with MA), FePt Nanoparticles (jointly with MA, MM)
DS 19.2: Poster
Dienstag, 27. März 2012, 12:15–15:15, Poster A
High-field ESR and magnetization of a Mn(III)-based single chain magnet — •Y. Krupskaya1, Z. Tomkowicz2, M. Rams2, M. Balanda3, S. Foro4, Y. Skourski5, J. Wosnitza5, S.K. Nayak6, J.V. Yakhmi7, W. Haase6, V. Kataev1, and B. Büchner1 — 1IFW Dresden, Dresden, Germany — 2Institute of Physics, Jagiellonian University, Kraków, Poland — 3H. Niewodniczański Institute of Nuclear Physics PAN, Kraków, Poland — 4Clemens-Schöpf-Institut für Organische Chemie und Biochemie, Technische Universität Darmstadt, Darmstadt, Germany — 5Dresden High Magnetic Field Laboratory, Rossendorf, Germany — 6Eduard-Zintl Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Darmstadt, Germany — 7Technical Physics and Prototype Engineering Division, Bhabha Atomic Research Centre, Mumbai, India
We present high-field magnetic study of a Mn(III)-based molecular chain. The compound shows a ferromagnetic hysteretic behavior of the magnetization at relatively high temperatures (up to 3 K). High-field/high-frequency ESR measurements were performed at the excitation frequencies between 332 and 528 GHz in magnetic fields up to 15 T. The frequency dependence of the ESR spectrum yields a g-factor of 1.8 and a negative effective magnetic anisotropy D of around −6.37 K. In addition, pulsed field (up to 60 T) magnetization measurements enabled determination of the effective spin value corresponding to the ground state of the chain. In conclusion, our experimental results indicate the single molecular chain magnet behavior of the studied compound.