Core Excitation and Electron Correlation in Crystals

  • Satoru Sugano
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 12)


The purpose of this article is to emphasize the importance of electron correlation in the excited states of crystals in spectroscopy using high energy photons in the range from 10 eV to 104 eV. Electrons in the inner cores of crystals are excited by photons of this energy range. The effects of electron correlation we are discussing are the change of excited-electron orbitals due to the presence of an inner-core hole, the formation of multiplets due to the correlated motion of the hole and the excited electron, and the effects of configuration interactions due to the breakdown of the orbital picture. At the beginning, we point out characteristic properties of core excitons by using a simple model of crystals. Then, citing two examples, vacuum-ultraviolet absorption spectra of alkali halides and X-ray photoelectron and K-emission spectra of transition-metal compounds, we clarify the importance of electron correlation in high energy spectroscopy.


Electron Correlation Excited Electron Excitation Transfer Core Hole CORE Excitation 
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Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • Satoru Sugano
    • 1
  1. 1.The Institute for Solid State PhysicsThe University of TokyoRoppongi, Minato-ku, TokyoJapan

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