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STM studies of rhodium deposits on an ordered alumina film-resolution and tip effects

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Stempel,  Sascha
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Bäumer,  Marcus
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Freund,  Hans-Joachim
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Stempel, S., Bäumer, M., & Freund, H.-J. (1998). STM studies of rhodium deposits on an ordered alumina film-resolution and tip effects. Surface Science, 402-404, 424-427. doi:10.1016/S0039-6028(97)01052-2.


Cite as: http://hdl.handle.net/21.11116/0000-0007-4F00-1
Abstract
A model system for a dispersed metal catalyst was investigated with STM under UHV conditions. Rhodium metal evaporated on to a well ordered Al2O3 thin film support was imaged with STM focusing particularly on the influence of the tip condition on the appearance of the metal islands. A good resolution on top of the aggregates could be achieved reproducibly, whereas a drastic change in the measured lateral size of the particles was found.