Valence fluctuations in Yb(Al,Fe)B4 studied by nanosecond-time-resolved photoemission spectroscopy using synchrotron radiation

M. Okawa, K. Akikubo, S. Yamamoto, I. Matsuda, T. Saitoh*

*この研究の対応する著者

研究成果査読

抄録

Temporal variations of valence states of the α-YbAl1−xFexB4 crystals (x = 0, 0.013, and 0.098) are experimentally examined in a nanosecond time-scale by time-resolved photoemission experiments using synchrotron radiation. The Yb 4f spectral features show no apparent change with time during relaxations after the optical pumping. The present experimental result indicates that dynamics of valence fluctuations in the material are likely dominated by a picosecond or much faster time-scale. The time-resolved measurement at the time-resolution limit at synchrotron radiation captured the trace of valence fluctuations.

本文言語English
ページ(範囲)20-23
ページ数4
ジャーナルe-Journal of Surface Science and Nanotechnology
19
DOI
出版ステータスPublished - 2021 3 18
外部発表はい

ASJC Scopus subject areas

  • バイオテクノロジー
  • バイオエンジニアリング
  • 凝縮系物理学
  • 材料力学
  • 表面および界面
  • 表面、皮膜および薄膜

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