Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 57: Focus Session: Spins on Surfaces III (joint session O/MA)

MA 57.8: Vortrag

Freitag, 5. April 2019, 12:30–12:45, H24

Thin film formation and processes in organic diradicals — •Tobias Junghöfer¹, Nolan Gallagher², Andrzej Rajca², and Maria Benedetta Casu¹ — ¹Eberhard Karls Universität Tübingen, Institut für Physikalische und Theoretische Chemie, 72076 Tübingen, Germany — ²Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, USA

Organic radical thin films are of great interest for organic electronics such as spin filtering devices, data storage devices, and as quantum bits for quantum computing devices. The investigated diradicals possess two coupled spins with a combined magnetic moment (S = 1) which is of interest for novel applications in spintronics. In our work, we investigate chemically stable diradicals, deposited via organic molecular beam deposition (OMDB) in ultra-high vacuum. For our experiments, we use soft X-ray techniques, such as X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, as well as atomic force microscopy (AFM). We demonstrate that we are able to deposit thin films of intact diradicals. We investigate their film formation properties and stability towards different environments.