Surface temperature dependence of oxidation of Cu3Au(111) by an energetic oxygen molecule

被引：5

作者：

Tsuda, Yasutaka ^{[1
]}

Yoshigoe, Akitaka ^{[2
]}

Teraoka, Yuden ^{[2
]}

Okada, Michio ^{[1
]}

机构：

[1] Osaka Univ, Dept Chem, Grad Sch Sci, 1-1 Machikaneyama Cho, Toyonaka, Osaka 5600043, Japan

[2] Japan Atom Energy Agcy, Quantum Beam Sci Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan

来源：

MATERIALS RESEARCH EXPRESS | 2016年 / 3卷 / 03期

关键词：

hyperthermal oxygen molecular beam; oxidation; Cu3Au; Cu2O; alloy surface; TRANSMISSION ELECTRON-MICROSCOPY; WATER-VAPOR; SEGREGATION; CU; PROFILE; GROWTH; STEELS; FILMS; BEAM;

D O I：

10.1088/2053-1591/3/3/035014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a study on the surface-temperature (T-s) dependence of oxidation process at Cu3Au(111) by using a hyperthermal oxygen molecular beam and synchrotron-radiation x-ray photoemission spectroscopy. The O-1s spectra and the corresponding O-uptake curves demonstrate that Cu2O domains grow effectively at high T-s of 400 and 500 K. The simple analysis of the O distribution suggests that the temperature-induced atomic diffusion causes the Cu2O domains growing thicker at 500 K. The oxidation of Cu3Au(111) is less efficient at T-s = 300-500 K than that of Cu(111), demonstrating that the protective nature of Cu3Au against oxidation, in comparison to Cu, remains even at high T-s.

引用

页数：8

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