Changes of electronic structure across the insulator-to-metal transition of quasi-two-dimensional Na-intercalated β-HfNCl studied by photoemission and x-ray absorption

T. Yokoya, Y. Ishiwata, S. Shin, S. Shamoto, K. Iizawa, T. Kajitani, I. Hase, T. Takahashi

研究成果: Article同行評審

30 引文 斯高帕斯(Scopus)

摘要

We use photoemission (PE) and x-ray absorption (XA) spectroscopy to study intercalation-induced changes in the electronic structure of β-HfNCl and (formula presented) PE shows appearance of new states in (formula presented) within the gap of β-HfNCl, with negligible changes in the energy positions of valence-band features of the parent, suggesting a non-rigid-band behavior. N (formula presented) XA results show that the tail of the conduction band, with a quasi-two-dimensional character, extends to lower energy in (formula presented) than in β-HfNCl. The study provides information on the electronic structure and its change across the insulator-to-metal transition of the new class of superconductors.

原文English
期刊Physical Review B - Condensed Matter and Materials Physics
64
發行號15
DOIs
出版狀態Published - 2001

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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