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Well-ordered ultra-thin Al2O3 film formation on NiAl(110) by high-temperature oxidation
被引:14
作者:
Yoshitake, M
[1
]
Lay, TT
[1
]
Song, WJ
[1
]
机构:
[1] Natl Inst Mat Sci, Nanomat Lab, Tsukuba, Ibaraki 3050003, Japan
关键词:
aluminum oxide;
oxidation;
crystallization;
low energy electron diffraction (LEED);
X-ray photoelectron spectroscopy;
D O I:
10.1016/j.susc.2004.06.197
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
NiAl(I 10) was oxidized at high temperature in an ultra-high vacuum. To examine the range of oxidation condition for a well-ordered ultra-thin Al2O3 film formation, oxidation was carried out at 970, 1070, and 1100 K by exposing the specimen to 1200 L oxygen under partial oxygen pressures of 6.6 x 10(-5) and 6.6 x 10(-6) Pa. LEED observation revealed that a crystalline Al2O3 formed at 1070 K under 6.6 x 10(-6) Pa oxygen was best ordered among the present experimental conditions. (C) 2004 Elsevier B.V. All rights reserved.
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页码:211 / 217
页数:7
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