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Regensburg 2013 – scientific programme

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MA: Fachverband Magnetismus

MA 37: Focus Session: Organic Materials for Spintronics: From Spinterface to Devices (jointly with HL, MA, O)

MA 37.7: Talk

Thursday, March 14, 2013, 12:45–13:00, H32

ESR study of the magnetic properties of the MnPc – F16CoPc dimer — •Azar Aliabadi, Susi Linder, Martin Knupfer, Yulia Krupskaya, Vladislav Kataev, and Bernd Büchner — IFW Dresden, 01069 Dresden

Photoemission spectroscopy has demonstrated a charge transfer at the interface between two transition metal phtalocyanines (MnPc and F16CoPc) indicating the formation of a MnPcδ+/F16CoPcδ− heterojunction [1]. In this work, the MnPc-F16CoPc dimer system with charge transfer was investigated using ESR spectroscopy at different temperatures. Comparison between ESR spectra of the parent compounds (MnPc and F16CoPc powders) and of the product of the reaction (MnPc/F16CoPc mixed powder) has revealed characteristic features due to the formation of the MnPc – F16CoPc dimer. We discuss distinct magnetic properties of the MnPc – F16CoPc dimer and their possible relation to the charge transfer in the studied complex.

[1] S. Lindner, M. Knupfer, R. Friedrich, T. Hahn, and J. Kortus, Phys. Rev. Lett. 109, 027601 (2012).

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