期刊
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
卷 38, 期 2, 页码 -出版社
A V S AMER INST PHYSICS
DOI: 10.1116/1.5134649
关键词
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资金
- DARPA INVEST [N66001-16-1-4040]
- U.S. Department of Energy (DOE) Office of Science Facilities, at Brookhaven National Laboratory [DE-SC0012704]
Thin films of barium and scandium metal were deposited onto W(100) from metal evaporation sources in ultrahigh vacuum. The Ba-Sc-W(100) surface was then exposed to oxygen and heated in stages to several temperatures up to 1400 degrees C to examine the desorption behavior of these adsorbates. In one case, microsynchrotron radiation x-ray photoelectron spectroscopy (micro-SRXPS) was performed on this surface using a low energy electron microscope. In another experiment, reported here, Auger electron spectroscopy data were collected from the Ba-Sc-O-W(100) surface as a function of heating to temperatures corresponding to the same temperatures used for the micro-SRXPS. Both measurements show that barium desorbs with scandium and oxygen at or below 800 degrees C. Published under license by AVS.
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