Doping-dependent and orbital-dependent band renormalization in Ba(Fe 1-xCox)2As2 superconductors

Takaaki Sudayama, Yuki Wakisaka, Takashi Mizokawa, Soshi Ibuka, Rei Morinaga, Taku J. Sato, Masashi Arita, Hirofumi Namatame, Masaki Taniguchi, Naurang L. Saini

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Angle resolved photoemission spectroscopy of Ba(Fe1-xCo x)2As2 (x = 0:06, 0.14, and 0.24) shows that the width of the Fe 3dyz/zx hole band depends on the doping level. In contrast, the Fe 3dx2-y2 and 3z2 - r2 bands are rigid and shifted by the Co doping. The Fe 3dyz/zx hole band is flattened at the optimal doping level x = 0:06, indicating that the band renormalization of the Fe 3dyz/zx band correlates with the enhancement of the superconducting transition temperature. The orbital-dependent and doping-dependent band renormalization indicates that the fluctuations responsible for the superconductivity is deeply related to the Fe 3d orbital degeneracy.

本文言語English
論文番号113707
ジャーナルjournal of the physical society of japan
80
11
DOI
出版ステータスPublished - 2011 11
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Doping-dependent and orbital-dependent band renormalization in Ba(Fe <sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub> superconductors」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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