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 2009/10
形態種別 研究論文
査読 査読あり
標題 First-Principles Local-Density Approximation Study of Electronic Structure in CeCoSi2
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 78(10)
担当区分 責任著者
著者・共著者 Akira Yasui,Hiroshi Yamagami,Hojun Im
概要 The first-principles band calculation of an itinerant cerium compound CeCoSi2 is performed using a relativistic LAPW method with exchange and correlation potentials within a local-density approximation (LDA). The c-f hybridized bands with a large dispersion form two-dimensional Fermi surface (FS). The FS formation and the band dispersion including the contribution from each orbital obtained by the LDA calculation are in a qualitatively agreement with Cc 3d-4f resonant angle-resolved photoemission spectra. The LIDA calculation is a good starting point for the investigation of the electronic structure of the heavy-fermion Ce compounds.
DOI 10.1143/JPSJ.78.104705
ISSN 0031-9015