Theory for High-Angular-Resolution Photoelectron Holograms Considering the Inelastic Mean Free Path and the Formation Mechanism of Quasi-Kikuchi Band

Tomohiro Matsushita, Takayuki Muro, Takayoshi Yokoya, Kensei Terashima, Yukako Kato, Hirosuke Matsui, Naoyuki Maejima, Yusuke Hashimoto, Fumihiko Matsui

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    In recent years, highly accurate measurements of photoelectron holograms have become possible through the development of electron energy analyzers with an energy range of 300–1000 eV. Effects of the inelastic mean free path (IMFP) and thermal vibration became apparent in the hologram pattern. For example, the quasi-Kikuchi band is clearly observed, which cannot be explained by conventional multiple scattering theories. Herein, the theory of photoelectron holograms is summarized, considering the inelastic scattering (IES) and thermal vibration effects. Furthermore, the simulated hologram is compared with a diamond hologram measured at a kinetic energy of 563.4 eV. It is also shown that the formation mechanism of the quasi-Kikuchi band differs from that of the normal Kikuchi band.

    Original languageEnglish
    Article number2000117
    JournalPhysica Status Solidi (B) Basic Research
    Volume257
    Issue number11
    DOIs
    Publication statusPublished - Nov 2020

    Keywords

    • Kikuchi bands
    • diamond
    • inelastic mean free path
    • photoelectron diffraction
    • photoelectron holography

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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