ヤマガミ ヒロシ   YAMAGAMI HIROSHI
  山上 浩志
   所属   京都産業大学  理学部 物理科学科
   職種   教授
言語種別 英語
発行・発表の年月 2011/07
形態種別 研究論文
査読 査読あり
標題 Resonant Angle-resolved Photoelectron Spectroscopy of Substitutional Solid Solutions of CeRu2Si2
執筆形態 その他
掲載誌名 JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
出版社・発行元 PHYSICAL SOC JAPAN
巻・号・頁 80
担当区分 責任著者
著者・共著者 T. Okane,I. Kawasaki,A. Yasui,T. Ohkochi,Y. Takeda,S. -i. Fujimori,Y. Saitoh,H. Yamagami,A. Fujimori,Y. Matsumoto,N. Kimura,T. Komatsubara,H. Aoki
概要 Angle-resolved photoelectron spectroscopy was measured in the Ce 3d -> 4f resonance energy region for the paramagnetic state of CeRu2Si2, Ce0.84La0.16Ru2Si2 and LaRu2Si2 to investigate a variation of band structures around the quantum critical point (QCP). While the results clearly demonstrate the difference of the band structures between CeRu2Si2 and LaRu2Si2, the observed band structures of CeRu2Si2 and Ce0.84La0.16RU2Si2 resemble each other. The results indicate that the Ce 4f electrons in the paramagnetic state have an itinerant character in either side of the critical composition, and Ce1-xLaxRu2Si2 near QCP is similar to CeRu2(Si1-xGex)(2).
DOI 10.1143/JPSJS.80SA.SA060
ISSN 0031-9015