Electron Energy-Loss Spectroscopy Based on Transmission Electron Microscope

  • TERAUCHI Masami
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

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  • EELSで何がわかるのか?
  • デンシ ケンビキョウ ニュウモン コウザ チュウキュウヘン トウカ デンシ ケンビキョウ ノ センシン キノウ オ モット カツヨウ シヨウ 3 EELS デ ナニ ガ ワカル ノ カ

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Description

Analysis methods of electron energy-loss spectroscopy (EELS) based on transmission electron microscopy are described. An introduction includes a short history, types of spectrometers and advantageous points of EELS. Thickness determination and elemental analysis methods are briefly described. Information of electronic structures appearing in valence-loss spectra is explained using spectra of graphite, C60 and diamond. Characteristic effects on core-loss spectra of the selection rule, on site excitation, chemical shift and core-hole interaction are explained.

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