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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, Vladimir, Taylor, D., Valizadeh, R., Ballard, I.M. and Goddard, D.T. (1994) An STM study of the development of surface features on gold under low-energy helium ion bombardment. Applied Surface Science, 74 (1). pp. 81-90. ISSN 0169-4332

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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.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering > Electron Microscopy and Materials Analysis
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Depositing User: Graeme Greaves
Date Deposited: 02 Oct 2013 09:11
Last Modified: 09 Oct 2014 10:42
URI: http://eprints.hud.ac.uk/id/eprint/18698

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