Direct observation of a quasiparticle band in CeIrIn5 : An angle-resolved photoemission spectroscopy study

Physical Review B - Condensed Matter and Materials Physics 73 巻 22 号 224517-1-224517-5 頁 2006-06-20 発行
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タイトル ( eng )
Direct observation of a quasiparticle band in CeIrIn5 : An angle-resolved photoemission spectroscopy study
作成者
Fujimori Shin-ichi
Fujimori Atsushi
Narimura Takamasa
Kobayashi Kenichi
Harima Hisatomo
Shishido Hiroaki
Ikeda Shugo
Aoki Dai
Tokiwa Yoshifumi
Haga Yoshinori
Ōnuki Yoshichika
収録物名
Physical Review B - Condensed Matter and Materials Physics
73
22
開始ページ 224517-1
終了ページ 224517-5
抄録
We have performed a high-resolution angle-resolved Ce 4d-4f resonant photoemission experiment on the heavy fermion superconductor CeIr In5. We have observed a quasiparticle band, which has an energy dispersion of ∼30 meV in the Ce 4f on-resonance spectra. The result suggests that although the 4f spectra are dominated by the localized and/or correlated character, the small itinerant component is responsible for the superconductivity in this compound.
著者キーワード
quasiparticles
cerium alloys
iridium alloys
indium alloys
photoelectron spectra
heavy fermion superconductors
localised states
band structure
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2006-06-20
権利情報
Copyright (c) 2006 The American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.73.224517
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.73.224517