Photoemission study on heavy fermion superconductors

Shin ichi Fujimori, Yuji Saitoh, Tetsuo Okane, Hiroshi Yamagami, Atsushi Fujimori, Kenya Shimada, Hiroshi Namatame, Masaki Taniguchi, Hiroaki Shishido, Dai Aoki, Shugo Ikeda, Yoshinori Haga, Etsuji Yamamoto, Yoshichika Onuki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have performed angle-resolved photoemission experiments for heavy fermion superconductors CeIrIn5 and UPd2Al3. It was found that the Ce 4f electrons in CeIrIn5 are nearly localized, but the small itinerant component also exists in the ARPES spectra. For UPd2Al3, on the other hand, the strongly dispersive bands of U 5f origin were observed, suggesting that the U 5f electronic states are dominated by the itinerant character. We have found that these two compounds have very different natures of f-electrons although both of them show the coexistence or competition of the superconductivity and the magnetic ordering.

Original languageEnglish
Pages (from-to)657-658
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume460-462 I
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2007 Sep 1

Keywords

  • Angle-resolved photoemission spectroscopy
  • Band structure
  • CeIrIn
  • Fermi surface
  • UPdAl

ASJC Scopus subject areas

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

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  • Cite this

    Fujimori, S. I., Saitoh, Y., Okane, T., Yamagami, H., Fujimori, A., Shimada, K., Namatame, H., Taniguchi, M., Shishido, H., Aoki, D., Ikeda, S., Haga, Y., Yamamoto, E., & Onuki, Y. (2007). Photoemission study on heavy fermion superconductors. Physica C: Superconductivity and its applications, 460-462 I(SPEC. ISS.), 657-658. https://doi.org/10.1016/j.physc.2007.03.027