Grazing incidence ion erosion in the presence of adsorbates

Details Grazing incidence ion erosion in the presence of adsorbates Grazing incidence ion erosion in the presence of adsorbates

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11f3011r&link_type=abstract

New Journal of Physics, Volume 11, Issue 6, pp. 063011 (2009).

Physics

3

Scientific paper

The effect of a background pressure of adsorbable species on sputtering and surface damage in grazing incidence ion erosion of Pt(111) is investigated by scanning tunneling microscopy and molecular dynamics simulations. The background pressure implies a partial surface coverage with adsorbates, which in turn causes an enhancement of the erosion rate by a factor of up to 40 compared to the clean case. Partial pressures of molecular oxygen and carbon monoxide were maintained during ion erosion with 5 keV Ar+ for various grazing angles between 81° and 87° and temperatures ranging from 400 to 550 K.

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