Optical spectroscopy and photoemission of α- And γ-cerium from LDA+DMFT

Research output: Contribution to journalArticle

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Abstract

Using a novel approach to calculate optical properties of strongly correlated systems, we address the old question of the physical origin of the α→γ transitions in Ce. We find that the Kondo collapse model, involving both the f and the spd electrons, describes the optical data better than a Mott transition picture involving the f electrons only. Our results compare well with existing experiments on thin films. We predict the optical spectra for both α and γ phases of Ce and find the development of a hybridization pseudogap in the vicinity of the phase transition.

Original languageEnglish (US)
Pages (from-to)139-141
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
StatePublished - Apr 30 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Cerium
  • LDA+DMFT
  • Optical spectrospcopy

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