このエントリーをはてなブックマークに追加
ID 48820
フルテキストURL
著者
Nakamura, Yoshiaki The Graduate School of Science and Technology, Okayama University
Okazaki, Hiroyuki The Graduate School of Science and Technology, Okayama University
Yoshida, Rikiya The Graduate School of Science and Technology, Okayama University
Wakita, Takanori The Graduate School of Science and Technology, Okayama University
Hirai, Masaaki The Graduate School of Science and Technology, Okayama University
Muraoka, Yuji The Graduate School of Science and Technology, Okayama University Kaken ID
Takeya, Hiroyuki National Institute for Materials Science (NIMS)
Hirata, Kazuto National Institute for Materials Science (NIMS)
Kumigashira, Hiroshi CREST, Japan Science and Technology Corporation (JST)
Oshima, Masaharu CREST, Japan Science and Technology Corporation (JST)
Yokoya, Takayoshi The Graduate School of Science and Technology, Okayama University ORCID Kaken ID
抄録
We have performed soft x-ray photoemission spectroscopy (SXPES) and resonant photoemission spectroscopy (RPES) of the filled skutterudite superconductor PrPt4Ge12 in order to study the electronic structure of valence band and the character of Pr 4f. SXPES of PrPt4Ge12 measured with 1200 eV photon energy, where spectral contribution of Pr 4f is negligible, was found nearly identical with that of LaPt4Ge12, indicating similarity of Pt–Ge derived electronic states of the two compounds. Good correspondence with band calculations allows us to ascribe the dominant Ge 4p character of the density of states at the Fermi level (EF). Pr 3d → 4f RPES shows that, although Pr 4f electrons in PrPt4Ge12 are not as strongly hybridized with conduction electrons near EF as in PrFe4P12, there are finite Pr 4f contribution to the states near EF in PrPt4Ge12. These PES results give the information of fundamental electronic structure for understanding the physical properties of the novel filled skutterudite superconductor PrPt4Ge12.
キーワード
PrPt<sub>4</sub>Ge<sub>12</sub>
filled skutterudite
superconductor
soft x-ray photoemission spectroscopy
Pr 3d → 4f resonant photoemission
electronic structure
発行日
2010-11-25
出版物タイトル
Journal of the Physical Society of Japan
79巻
12号
出版者
The Physical Society of Japan
開始ページ
124701-1
終了ページ
124701-4
ISSN
0031-9015
資料タイプ
学術雑誌論文
プロジェクト
エネルギー環境新素材拠点
オフィシャル URL
http://jpsj.ipap.jp/link?JPSJ/79/124701/
言語
English
著作権者
©2010 The Physical Society of Japan
論文のバージョン
author
査読
有り
DOI
Web of Sience KeyUT