Inverse photoemission and soft X-ray emission spectra of Al-Ni-Co decagonal single quasicyrstal

K. Soda, K. Nozawa, Y. Yanagida, K. Morita, U. Mizutani, Y. Yokoyama, R. Note, A. Inoue, H. Ishii, Y. Tezuka, S. Shin

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Inverse photoemission spectra (IPES) of a decagonal single quasicyrstal Al72Ni12Co16 have been measured for various incident electron energies Ei together with its Al L23 soft X-ray emission spectra (SXES). Both IPES and SXES show low intensity near the photon energy corresponding to the Fermi level, which is consistent with an opening of a pseudo-gap across the Fermi level. The IPES shows no strong resonance enhancement, suggesting apparently small density of the transition metal d states above the Fermi level. However, constant final state spectra of the inverse photoemission reveal faint humps around Ei = 62 and 76 eV, which might indicate resonances due to the Co and Ni 3d-derived states, respectively. A shoulder structure at the low photon energy side of the main band in the Al L2,3 SXES becomes prominant for the lower incident electron energy and is tentatively ascribed to the Ni 3p emission band.

Original languageEnglish
Pages (from-to)415-418
Number of pages4
JournalJournal of Electron Spectroscopy and Related Phenomena
Publication statusPublished - 1998 Mar
Externally publishedYes


  • AlNiCo
  • Decagonal quasicrystal
  • Inverse photoemission spectrum
  • Soft X-ray emission spectrum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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