Regensburg 2007 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 20: Correlated Electrons - Poster Session
TT 20.39: Poster
Mittwoch, 28. März 2007, 14:00–17:45, Poster A
Initial stages of growth of the strongly correlated Fe3O4 thin films — •Stefan Klein1, Chun Fu Chang1, Zhiwei Hu1, Philipp Hansmann1, Hong-Ji Lin2, Chien-Te Chen2, and Liu Hao Tjeng1 — 1II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln — 2National Synchrotron Radiation Research Center,101 Hsin-Ann Road, Hsinchu 30076, Taiwan
We have investigated the initial stages of growth of the polar Fe3O4(001) thin films using reflection high-energy electron diffraction, low-energy electron diffraction and soft X-ray absorption spectroscopy (XAS). A series of epitaxial thin films with varying thicknesses were grown by molecular-beam epitaxy in O2 atmosphere on MgO(001) substrates. From the analysis of the XAS spectra, we established a model for the growth process. Furthermore, the surface reconstruction of Fe3O4(001) will also be discussed. Supported by the DFG through SFB 608.