Role of interdimer interactions in NH3 dissociation on si(100)-(2x1)

The dissociation of NH3 on Si(100)-(2x1) is investigated by a combination of infrared absorption spectroscopy and density functional cluster calculations, revealing that this reaction is governed by a complex set of interdimer interactions involving both bare and adsorbate-covered Si dimers. We prop...

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Published in:Physical review letters 2001-02, Vol.86 (6), p.1046-1049
Main Authors: Queeney, K T, Chabal, Y J, Raghavachari, K
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Chabal, Y J
Raghavachari, K
description The dissociation of NH3 on Si(100)-(2x1) is investigated by a combination of infrared absorption spectroscopy and density functional cluster calculations, revealing that this reaction is governed by a complex set of interdimer interactions involving both bare and adsorbate-covered Si dimers. We propose that such adsorbate-induced changes in the electronic structure of neighboring dimers may have general implications for controlling the two-dimensional ordering of reactions on the dimerized Si(100) surface.
doi_str_mv 10.1103/PhysRevLett.86.1046
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title Role of interdimer interactions in NH3 dissociation on si(100)-(2x1)
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