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Structure and oscillatory multilayer relaxation of the bismuth (100) surface

AutorKoroteev, Yuri M.; Chulkov, Eugene V. ; Hofmann, Ph.; Pohl, K.
Fecha de publicaciónjun-2010
EditorInstitute of Physics Publishing
CitaciónNew Journal of Physics 12: 063016 (2010)
ResumenWe present a combined experimental and theoretical study of the surface structure of single crystal Bi(100) via scanning tunneling microscopy (STM), low-energy electron diffraction intensity versus energy (LEED-IV) analysis and density functional theory (DFT). We find that the surface is unreconstructed and shows an unusually large oscillatory multilayer relaxation down to the sixth layer. This unexpected behavior will be explained by a novel mechanism related to the deeply penetrating electronic surface states. STM reveals wide (100) terraces, which are separated by two-layer high steps in which the shorter of the two interlayer spacings is terminating this surface, consistent with the LEED structural analysis and DFT.
Descripción13 páginas, 6 figuras, 1 tabla.-- et al.
Versión del editorhttp://dx.doi.org/10.1088/1367-2630/12/6/063016
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