Regensburg 2010 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 31: Molecular Spintronics - Current Status and Challenges I (Focused Session)

DS 31.5: Vortrag

Donnerstag, 25. März 2010, 12:00–12:15, H2

Magnetic transition metal phthalocyanine thin films on Au(001): ordering and electronic structure — •Victor Aristov^1,2, Volodymyr Maslyuk³, Olga Molodtsova¹, Ingrid Mertig³, Thomas Bredow⁴, and Martin Knupfer¹ — ¹IFW Dresden, Germany — ²ISSP RAS, Russia — ³Uni Halle, Germany — ⁴Uni Bonn, Germany

At the present time magnetic transition metal phthalocyanines (MTM - Pc's) are considered as objects for the elaboration of low dimensional molecular magnets because they are supposed as possible candidates for potential applications in high-density information storage and quantum computers. Such possible applications give a strong motivation to characterize and investigate the ordering and electronic properties of MTM-Pc thin films since this determines the performance of devices. In this presentation we report the results of investigations of the molecular ordering, as well as the core-levels, valence band and unoccupied electronic states of the organic semiconductors MTM-Pc in situ grown on Au(001) surface under UHV conditions. The studies were done using a combination of experimental and theoretical techniques, by means of quantum-chemical calculations at DFT level, direct and resonant photoemission and NEXAFS. The experimentally obtained electronic features are in a good agreement with ab initio density of state results allowing a detailed site specific insight into the system. Acknowledgments: This work was supported by the RFBR under grant no. 08-02-01170.