Chemical Sputtering of Deuterated Carbon Surfaces at Various Surface Temperatures

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

OSTI ID:1096273

Dadras, J. ^[1]; Krstic, Predrag S ^[2]

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1. University of Tennessee, Knoxville (UTK)
2. ORNL

The chemical sputtering of deuterated amorphous carbon (a-C:D) surfaces irradiated by 1 50 eV deuterium atoms at surface temperatures between 300 1000 K was studied using classical molecular dynamics. A quasi-stationary state was reached by cumulative bombardment for each energy and temperature. Results were compared with available experimental data and previous modeling results, and the applicability of molecular dynamics for thermally generated processes was discussed. An attempt is made to correct the absence of the thermally stimulated desorption/degassing form the MD simulations, which evolve at the longer time scales.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1096273
• Journal Information: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 269, Issue 11
• Country of Publication: United States
• Language: English