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Si(100)4°-(2x1)

LEED pattern

LEED: Si(100)4°-(2x1)

1D scan of the (00) spot

1D scan of the (00) spot
4°-misoriented Si(100) vicinals are characterized by a single domain (2x1) reconstruction. This structure is energetically favoured due to the intrinsic strain of the dimer reconstruction. (2x1) terraces are separated by double steps which build up a regular step array with a high degree of long-range order. This is evident from integral order beams which are split up in sharp and equidistant spots along the tilting direction. A spot splitting of 10% of the surface Brillouin zone indicates a terrace length of 39 Å.


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