The threshold curve for the displacement of atoms in graphite

✍ Scribed by G.L Montet

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 625 KB
• Volume: 11
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(73)90059-6

✦ Synopsis

The previous work utilizing the etch-decoration technique to determine the threshold energy for the displacement of atoms in graphite has been extended to the elucidation of the initial portion of the displacement curve. The availabihty of an electron beam of precisely defined energy of up to 500 eV has made possible the mapping out of the curve up to 135 eV. The shape of the displacement curve differs somewhat from the cross-section curve obtained from measurements of the change in electrical resistivity of electron-irradiated graphite but is very similar to that obtained by in situ electronmicroscopic studies. A linear extrapolation of the initial portion of the displacement curve yields a value of 297eV for the threshold energy in good agreement with that determined directly.