セミナー情報

JAEA スペシャルセミナー (JAEA Special Seminar)

日時: 平成22年7月9日(金) 16:30〜
Date and time: 9th Jul. (Fri.) 16:30〜
場所: SPring-8, 萌光館
Place: SPring-8, "HOUKOUKAN" seminar room
Title: X-ray absorption and resonant photoelectron diffraction of titanium dioxide
Speaker: Prof. Peter Kruger (ICB, Univerisity of Dijon, France)
Abstract:

First, an experimental and theoretical study of resonant photoelectron diffraction on titanum dioxide surfaces is presented. By analyzing the defect state in the TiO2 band gap with this technique we show how real space information on the location of the defect state can be obtained [1]. Second, a method for calculating x-ray absorption spectra at transition metal L23 and actinide O45 absorption edges is presented. It is based on the theory of multichannel multiple scattering and combines ab initio band structure and certain multiplet-type electron correlation effects. The method is applied to Ca, Ti [2] and Th compounds and good agreement with experiment is obtained.

[1] P. Krüger et al., Phys. Rev. Lett. 100 (2008) 055501.
[2] P. Krüger, Phys. Rev. B 81 (2010) 125121.