Low-Energy Electron Energy-Loss Peak Due to Excitation of the Surface State Associated with Dangling Bonds on Si(001)-2×1 Surface : Surfaces, Interfaces and Films

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概要

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• Low-energy electron energy-loss spectra (LEELS) from the Si(001)-2×1 surface were measured for some surface wave resonance (SWR) conditions: (1) The electron beam forms some surface waves associated with the fundamental lattice points (SWR_b), and (2) the electron beam forms some surface waves with the 1/2-order superlattice rods (SWR_s). In the LEELS for SWR_b, the peak heights at 5, 8 and 11 eV in energy-loss value, ΔE, become slightly large. On the other hand, for SWR_s, the peak heights at ΔE)=1.5 and 8-9 eV are enhanced. The difference of LEELS for both SWR conditions reflects the difference in the thickness of the layers in which the electron beam propagates. It is discussed that the peak at ΔE=8-9 eV is due to excitation of a collective motion for the electrons in the dangling bonds out of the first plane of the surface atoms.

• 社団法人応用物理学会の論文
• 1988-06-20

著者

• Shigeta Yukichi

  Department Of Physics Yokohama City University

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• Low-Energy Electron Energy-Loss Peak Due to Excitation of the Surface State Associated with Dangling Bonds on Si(001)-2×1 Surface : Surfaces, Interfaces and Films

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