Raman studies of steric hindrance and surface relaxation of stepped H-terminated silicon surfaces

Melissa A. Hines, Yves J. Chabal, Timothy D. Harris, Alex Harris

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Polarized angle-resolved Raman spectra of the Si-H stretching vibrations on stepped H-terminated Si(111) surfaces confirm the constrained orientation of the step dihydride derived from ab initio cluster calculations. They further show that the step normal modes involve little concerted motion of the step atoms, indicating that step relaxation reduces the steric interaction much further than predicted.

Original languageEnglish
Pages (from-to)2280-2283
Number of pages4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 1993


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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