A study was made of the the Si(111) surface after various heat treatments with small amounts of Ni( less than equivalent to 1 monolayer) present. It is found that three types of reconstructions can be obtained: 7 multiplied by 7, ″1 multiplied by 1″ and 19** one-half multiplied by 19** one-half . Photoemission spectra show that the metallic nature of the dangling bond surface state, characteristic of the clean 7 multiplied by 7 surface, disappears for the ″1 multiplied by 1″ and 19** one-half multiplied by 19** one-half surfaces. MeV ion scattering establishes that the average surface atom displacement parallel to the surface is significantly larger for the 19** one-half multiplied by 19** one-half surface than for both the clean 7 multiplied by 7 and the ″1 multiplied by 1″ surfaces.
|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of vacuum science & technology|
|State||Published - Jan 1 1980|
|Event||Proc of the Natl Symp of the Am Vac Soc, 27th, Pt 2 - Detroit, MI, Engl|
Duration: Oct 13 1980 → Oct 17 1980
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