Point defect formation on graphite surface induced by ion impact at energies near penetration threshold

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 528
  • Download : 65
It is shown that point defects are predominantly generated by irradiating low energy noble gas ions onto a graphite(0001) surface. Scanning tunneling microscopic images of the graphite surface irradiated with 50 eV Ar + ions show a structure corresponding to a point defect in which only one or two surface atoms are displaced. The process of ion penetration and trapping into the graphite is investigated as a function of ion energy in the range of 1-500 eV. Trapping efficiency rapidly increases with ion energy in the threshold region (10-100 eV), and leads to a saturation for higher energies. The penetration and trapping mechanism is discussed in relation to defect formation on the surface.
Publisher
Elsevier
Issue Date
1992-04
Citation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol.67, No.1-4, pp.312-315

ISSN
0168-583X
DOI
10.1016/0168-583X(92)95823-A
URI
http://hdl.handle.net/10203/11324
Appears in Collection
CH-Journal Papers(저널논문)

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0