X-ray absorption and resonant photoemission spectroscopy of ZrB2

S. Tsuda, R. Eguchi, A. Kosuge, T. Yokoya, A. Fukushima, S. Shin, A. Chainani, S. Otani, Y. Takano, K. Togano, H. Kito

研究成果: Conference article同行評審

4 引文 斯高帕斯(Scopus)

摘要

We have performed X-ray absorption and valence band photoemission spectroscopy on ZrB2, which has the same AlB2 structure of MgB2, to study the electronic structure. From X-ray absorption spectra near the B1s-2p threshold, we found a small absorption edge at 188.23 eV with a negligible angular dependence upto 190 eV photon energy. This indicates that B2p partial density of states near the Fermi level (E F) is three dimensional, in sharp contrast to that of MgB 2. Resonant photoemission study across the B1s-2p threshold was found to be difficult due to a large contribution of Auger electrons. On the other hand, resonant photoemission across the Zr3p-4d threshold does show small change in intensity within 4 eV of EF. This indicates that the occupied states near EF have substantial Zr 4d character. These observations are in relatively good agreement with band structure calculations.

原文English
頁(從 - 到)259-262
頁數4
期刊Physica C: Superconductivity and its applications
392-396
發行號PART 1
DOIs
出版狀態Published - 2003 十月
事件Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
持續時間: 2002 十一月 112002 十一月 13

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程

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