High-resolution angle-resolved photoemission study of non cuprate two-dimensional superconductor Sr2RuO4

T. Yokoya, O. Akaki, H. Kumigashira, A. Chainani, T. Takahashi, H. Katayama-Yoshida, M. Kasai, Y. Tokura

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

High-resolution angle-resolved photoemission spectroscopy has been carried out on a ruthenate superconductor Sr2RuO4 (Tc ∼ 1 K), which has the same crystal structure as La2CuO4, but with RuO2 layers replacing the CuO2, and exhibits T2 dependence of electrical resistivity below 25 K. The results show that the electronic structure of Sr2RuO4 has an extended van-Hove singularity (VHS) near EF in a quite similar manner to the high Tc cuprates, regardless of the character of the electronic states near EF. This requests reexamination of the VHS scenario and its relation to both the normal and superconducting properties.

原文English
頁(從 - 到)171-174
頁數4
期刊Journal of Electron Spectroscopy and Related Phenomena
78
出版狀態Published - 1996 五月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 輻射
  • 原子與分子物理與光學
  • 凝聚態物理學
  • 光譜
  • 物理與理論化學

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