Core-exciton interaction in sodium L2,3 edge structure investigated using the Bethe-Salpeter equation

Kota Tomita, Tomohiro Miyata, Weine Olovsson, Teruyasu Mizoguchi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Despite the importance of sodium compounds for their application in sodium-ion rechargeable batteries, core-exciton interactions in sodium L2,3 edge core-electron loss spectra are not well-understood. In this study, Bethe-Salpeter equation calculations of sodium L2,3 edges of sodium compounds were performed to understand the relationships between the core-exciton interactions and the electronic structure of sodium compounds. It was revealed that the core-exciton interaction of sodium compounds is strongly dependent on the compounds. We found that neither band gap nor ionic charge can explain the trend; however, the transition energy shows a clear correlation to the magnitude of the core-exciton interaction. These results indicate that the magnitude of the core-exciton interaction is decided by the excited electronic structure of each compound.

Original languageEnglish
Pages (from-to)9036-9042
Number of pages7
JournalJournal of Physical Chemistry C
Volume120
Issue number17
DOIs
Publication statusPublished - 2016 May 5
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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