Publication: Two reaction channels directly observed for atomic hydrogen on the Si(111)-7×7 surface
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Date
1991
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American Physical Society (APS)
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Mortensen, K., D. M. Chen, P. J. Bedrossian, J. A. Golovchenko, and F. Besenbacher. 1991. Two Reaction Channels Directly Observed for Atomic Hydrogen on the Si(111)-7×7 Surface. Physical Review B 43, no. 2: 1816–1819. doi:10.1103/physrevb.43.1816.
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Abstract
Using scanning tunneling microscopy and spectroscopy, we have investigated the reaction of atomic hydrogen with the Si(111)-7×7 reconstructed surface. A simple picture evolves in which the reaction proceeds concurrently along two channels: a direct binding of the hydrogen atoms to the existing dangling bonds of the surface, and a slower removal of the uppermost Si layer and binding of the hydrogen atoms to the created dangling bonds of the next layer.
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