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

doi:10.1016/0169-4332(94)90102-3

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

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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 language	English
Pages (from-to)	81-90
Number of pages	10
Journal	Applied Surface Science
Volume	74
Issue number	1
DOIs	https://doi.org/10.1016/0169-4332(94)90102-3
Publication status	Published - 1 Jan 1994
Externally published	Yes

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AU - Taylor, D.

AU - Valizadeh, R.

AU - Ballard, I. M.

AU - Goddard, D. T.

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AB - 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.

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

Abstract

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