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Protective layer formation during oxidation of Cu$$_{3}$$Au(100) using hyperthermal O$$_{2}$$ molecular beam

Okada, Michio*; Hashinokuchi, Michihiro*; Fukuoka, Masayuki*; Kasai, Toshio*; Moritani, Kosuke*; Teraoka, Yuden

Oxidation of Cu$$_{3}$$Au(100) using a hyperthermal O$$_{2}$$ molecular beam (HOMB) was investigated by X-ray photoemission spectroscopy in conjunction with a synchrotron light source. From the incident energy dependence of the O-uptake curve, it was determined that the dissociative adsorption of O$$_{2}$$ implies a higher activation barrier and therefore less reactivity due to the Au alloying. The dissociative adsorption progresses with the Cu segregation on the surface. No prominent growth of Cu$$_{2}$$O even for 2 eV HOMB suggests that the Au-alloying of Cu can serve as a protective layer against further oxidation into the bulk.

Language

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English

Journal

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Applied Physics Letters

Volume

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89

Number

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20

Pages

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p.201912_1 - 201912_3

Publication Year/Month

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2006/11

Meeting title

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Held date

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Location (city)

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Location (country)

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Patent information

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PDF

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Paper URL

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https://doi.org/10.1063/1.2390672

DOI for research data

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Keywords

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no keyword

Research Facility

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SPring-8(大型放射光施設)

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

InCites™

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Percentile:64.91

Category:Physics, Applied

Altmetrics

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