Structural analogy between GeSi(111)-5 × 5 and Si(111)-7 × 7 surfaces |
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Authors: | EG McRae H-J Gossmann LC Feldman |
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Institution: | AT&T Bell Laboratories, Murray Hill, New Jersey 07974, USA |
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Abstract: | Low energy electron diffraction (LEED) patterns for the GeSi(111)-5 × 5 surface are reported and compared to those for the Si(111)-7 × 7 surface. Parallels between the observed LEED patterns are explained by a structural analogy between GeSi(111)-5 × 5 and Si(111)-7 × 7 surfaces. Both the (5 × 5) and (7 × 7) patterns are shown to be consistent with structural models of the triangle-dimer type previously proposed for Si(111)-7 × 7 surface. |
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