An STM study of the development of surface features on gold under low-energy helium ion bombardment

S. E. Donnelly, V. Vishnyakov, D. Taylor, R. Valizadeh, I. M. Ballard, D. T. Goddard

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The development of small-scale surface topography on initially atomically flat gold surfaces under irradiation with 3 keV helium ions has been investigated using a scanning tunneling microscope (STM). The study has revealed surface features that appear to result from the underlying defect morphology in the implanted metal rather than from sputter-erosion processes occurring at the surface. These features are stable at room temperature. Smaller, sub-monolayer height "bumps" have also been observed under some conditions. It is postulated that these features may be an electronic rather than an elastic effect.

Original languageEnglish
Pages (from-to)81-90
Number of pages10
JournalApplied Surface Science
Volume74
Issue number1
DOIs
Publication statusPublished - 1 Jan 1994
Externally publishedYes

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Helium
Ion bombardment
Gold
Microscopes
Scanning
Surface topography
Erosion
Monolayers
Metals
Irradiation
Ions
Defects
Temperature

Cite this

Donnelly, S. E. ; Vishnyakov, V. ; Taylor, D. ; Valizadeh, R. ; Ballard, I. M. ; Goddard, D. T. / An STM study of the development of surface features on gold under low-energy helium ion bombardment. In: Applied Surface Science. 1994 ; Vol. 74, No. 1. pp. 81-90.
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An STM study of the development of surface features on gold under low-energy helium ion bombardment. / Donnelly, S. E.; Vishnyakov, V.; Taylor, D.; Valizadeh, R.; Ballard, I. M.; Goddard, D. T.

In: Applied Surface Science, Vol. 74, No. 1, 01.01.1994, p. 81-90.

Research output: Contribution to journalArticle

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