Interaction of electron beams with an oxygen exposed polycrystalline aluminium surface

• Published in: Surface science Vol. 141; no. 1; pp. 1 - 12
• Main Authors: Adem, E.H., Seymour, D.L., Pattinson, E.B.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.06.1984; Amsterdam Elsevier Science; New York, NY
• Subjects: Analysing. Testing. Standards; Applied sciences; Chemistry; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Electrons and positron radiation effects; Exact sciences and technology; General and physical chemistry; Materials science; Metals, semimetals and alloys; Metals. Metallurgy; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other interactions of matter with particles and radiation; Physical radiation effects, radiation damage; Physics; Solid-gas interface; Specific materials; Structure of solids and liquids; crystallography; Surface physical chemistry; Oxygen; Demixtion; Beam density; Polycrystal; Electron beam; Surface film; Composition effect; Desorption; Experimental study; Diagram; Technical card; Accuracy; Exchange interaction; Irradiation; Surface properties; Oxidation; Auger electron spectrometry; Radiation damage; Data sheets; Inorganic adsorbate; Metal; Preadsorption; Gas solid adsorption; Adsorption; Gas solid interface; Metallic adsorbent; Trivalent metal; Physical method
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/0039-6028(84)90192-4

Measurements of the changes in the 67 eV metallic aluminium, 54 eV oxidized aluminium cross transition and 505 eV oxygen Auger transition signals as a function of electron irradiation have been performed on an oxidized polycrystalline aluminium sample for beam doses up to 5 C/cm 2 with an electron beam energy of 1.5 keV. A decrease in the overall oxide and oxygen content of the surface has been observed as a consequence of electron irradiation. It is proposed that the predominant process occurring causing the change is “Coulomb explosion” decomposition and desorption.