High resolution 4d-4f resonance photoemission spectroscopy of CePdX (X=As, Sb)

Takeshi Iwasaki, Shigemasa Suga, Shin Imada, Akira Sekiyama, Takayuki Muro, Shigenori Ueda, Masahiko Saeki, Hideyuki Harada, Tomohiro Matsushita, Hiroyoshi Ishii, Osamu Sakai, Ryu Takayama, Takashi Suzuki, Motoki Akuura, Tamio Oguchi, Kenichi Katoh, Akira Ochiai

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We have studied the electronic structures of ternary Ce compounds CePdX (X=As, Sb) by means of high resolution 4d-4f resonance photoemission spectroscopy. In the Ce 4f spectra, the relative intensity ratios between the well-and poorly-screened peaks are appreciably different between these materials, while the spectra in the vicinity of the Fermi level have similar features with two shoulders split by the spin-orbit splitting. We have analyzed the experimental line-shapes of the Ce 4f spectra with using the non-crossing approximation calculation within the Anderson impurity model. It is found that the spectral difference originates from the differences of the energy positions of the valence-band and the bare Ce 4f level as well as their mutual hybridization strength.

Original languageEnglish
Pages (from-to)1716-1724
Number of pages9
Journaljournal of the physical society of japan
Volume68
Issue number5
DOIs
Publication statusPublished - 1999 May
Externally publishedYes

Keywords

  • Ce 4f states
  • High-resolution
  • Hybridization
  • NCA calculation
  • Resonance photoemission
  • Valence-band

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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