High-resolution core-level photoelectron spectroscopy of Mg/Si( [formula omitted]) surfaces

• Published in: Surface science Vol. 523; no. 1; pp. 30 - 36
• Main Authors: Cho, E.S, Lee, C.H, Hwang, C.C, Moon, J.C, Oh, J.h, Ono, K, Oshima, M, An, K.S, Park, C.Y
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 10.01.2003; Amsterdam Elsevier Science; New York, NY
• Subjects: Adsorption and desorption kinetics; evaporation and condensation; Alkaline earth metals; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Physics; Silicon; Solid-fluid interfaces; Surface structure, morphology, roughness, and topography; Surface thermodynamics (including phase transitions); Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Synchrotron radiation photoelectron spectroscopy; Alkaline earth metals; Silicon; Surface structure, morphology, roughness, and topography; Synchrotron radiation photoelectron spectroscopy; Surface thermodynamics (including phase transitions); Inorganic adsorbate; Phase transformations; Inorganic adsorbent; Surface topography; Experimental study; Photoelectron spectroscopy; Surface structure; Gas solid adsorption; Gas solid interface; Adsorption structure; Crystal faces; Magnesium; Synchrotron radiation
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/S0039-6028(02)02349-X

The electronic and atomic structures of the Mg-adsorbed Si(1 0 0)2×2 and 2×3 surfaces have been investigated by using high-resolution synchrotron radiation photoemission spectroscopy. The Mg 2p spectra for both surfaces were well fitted with a single component, indicating that the Mg atom is adsorbed at a unique site. The Si 2p spectra were also decomposed into four components (two surface components, one second layer related component, and a bulk component). These analysis results reveal that a Mg atom preferably adsorbs at a bridge site on the Si(1 0 0)2×1 surface.