| Download | - View accepted manuscript: Iridium single atom tips fabricated by field assisted reactive gas etching (PDF, 733 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/j.apsusc.2016.01.080 |
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| Author | Search for: Wood, John A.1; Search for: Urban, Radovan1; Search for: Salomons, Mark1; Search for: Cloutier, Martin1; Search for: Wolkow, Robert A.1; Search for: Pitters, Jason L.1 |
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| Name affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Abstract | We present a simple, reliable method to fabricate Ir single atom tips (SATs) from polycrystalline wire. An electrochemical etch in CaCl2 solution is followed by a field assisted reactive gas etch in vacuum at room temperature using oxygen as an etching gas and neon as an imaging gas. Once formed, SATs are cooled to liquid nitrogen temperatures and their underlying structure is examined through evaporation of the apex atoms. Furthermore, a method is developed to repair Ir SATs at liquid nitrogen temperatures when apex atoms evaporate. This method may be used to fabricate Ir SAT ion sources. |
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| Publication date | 2016-01-12 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21277235 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | db4b471f-ee9e-4877-8ed6-dd5e5e06d936 |
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| Record created | 2016-01-18 |
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| Record modified | 2020-06-04 |
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