Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As1-xPx)2

T. Yoshida, S. Ideta, T. Shimojima, W. Malaeb, K. Shinada, H. Suzuki, I. Nishi, A. Fujimori, K. Ishizaka, S. Shin, Y. Nakashima, H. Anzai, M. Arita, A. Ino, H. Namatame, M. Taniguchi, H. Kumigashira, K. Ono, S. Kasahara, T. ShibauchiT. Terashima, Y. Matsuda, M. Nakajima, S. Uchida, Y. Tomioka, T. Ito, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, H. Ikeda, R. Arita, T. Saito, S. Onari, H. Kontani

研究成果: Article査読

20 被引用数 (Scopus)

抄録

We report peculiar momentum-dependent anisotropy in the superconducting gap observed by angle-resolved photoemission spectroscopy in BaFe2(As1-xPx)2 (x=0.30, Tc=30K). Strongly anisotropic gap has been found only in the electron Fermi surface while the gap on the entire hole Fermi surfaces are nearly isotropic. These results are inconsistent with horizontal nodes but are consistent with modified s± gap with nodal loops. We have shown that the complicated gap modulation can be theoretically reproduced by considering both spin and orbital fluctuations.

本文言語English
論文番号7292
ジャーナルScientific reports
4
DOI
出版ステータスPublished - 2014 12 3
外部発表はい

ASJC Scopus subject areas

  • General

フィンガープリント 「Anisotropy of the superconducting gap in the iron-based superconductor BaFe<sub>2</sub>(As<sub>1-x</sub>Px)<sub>2</sub>」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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