Observation of Surface Phenomena of Rhenium by F.E.M. and F.I.M.
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概要
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Clean and smooth surface is usually obtained by the field-evaporation in field-ion microscope. The state of the surface obtained in this way is different from that obtained by annealing. By annealing, the chemical potential of the surface which is mainly controlled by the migration energy of surface atoms would become minimum. The effect of the applied high electric field should be taken into consideration in the study of adsorption with the field emission and field ion microscopes. The adsorbed atoms with atomic polarization are largely influenced by the tangential component of the electric field. By the adsorption of carbon monoxide or oxygen, the field evaporation voltage decreased for tungsten, molybdenum and iridium but didn't for rhenium. This fact and the "build-up" phenomenon of alkali-carbonyl would show that the carbon monoxide adsorbs weakly and like [figure] on rhenium.
- 社団法人応用物理学会の論文
- 1969-06-05
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