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. Shibauchi; T. 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

doi:10.1038/srep07292

Anisotropy of the superconducting gap in the iron-based superconductor BaFe₂(As_1-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. Shibauchi

T. 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 › 査読

27 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(As_1-xPx)₂ (x=0.30, T_c=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
ページ数	6
ジャーナル	Scientific Reports
巻	4
DOI	https://doi.org/10.1038/srep07292
出版ステータス	Published - 12月 3 2014
外部発表	はい

ASJC Scopus subject areas

一般

文献へのアクセス

10.1038/srep07292

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引用スタイル

Yoshida, T., Ideta, S., Shimojima, T., Malaeb, W., Shinada, K., Suzuki, H., Nishi, I., Fujimori, A., Ishizaka, K., Shin, S., Nakashima, Y., Anzai, H., Arita, M., Ino, A., Namatame, H., Taniguchi, M., Kumigashira, H., Ono, K., Kasahara, S., ... Kontani, H. (2014). Anisotropy of the superconducting gap in the iron-based superconductor BaFe₂(As_1-xPx)₂. Scientific Reports, 4, 記事 7292. https://doi.org/10.1038/srep07292

Yoshida, T, Ideta, S, Shimojima, T, Malaeb, W, Shinada, K, Suzuki, H, Nishi, I, Fujimori, A, Ishizaka, K, Shin, S, Nakashima, Y, Anzai, H, Arita, M, Ino, A, Namatame, H, Taniguchi, M, Kumigashira, H, Ono, K, Kasahara, S, Shibauchi, T, Terashima, T, Matsuda, Y, Nakajima, M, Uchida, S, Tomioka, Y, Ito, T, Kihou, K, Lee, CH, Iyo, A, Eisaki, H, Ikeda, H, Arita, R, Saito, T, Onari, S & Kontani, H 2014, 'Anisotropy of the superconducting gap in the iron-based superconductor BaFe₂(As_1-xPx)₂', Scientific Reports, vol. 4, 7292. https://doi.org/10.1038/srep07292

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

abstract = "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.",

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

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T1 - Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As1-xPx)2

AU - Yoshida, T.

AU - Ideta, S.

AU - Shimojima, T.

AU - Malaeb, W.

AU - Shinada, K.

AU - Suzuki, H.

AU - Nishi, I.

AU - Fujimori, A.

AU - Ishizaka, K.

AU - Shin, S.

AU - Nakashima, Y.

AU - Anzai, H.

AU - Arita, M.

AU - Ino, A.

AU - Namatame, H.

AU - Taniguchi, M.

AU - Kumigashira, H.

AU - Ono, K.

AU - Kasahara, S.

AU - Shibauchi, T.

AU - Terashima, T.

AU - Matsuda, Y.

AU - Nakajima, M.

AU - Uchida, S.

AU - Tomioka, Y.

AU - Ito, T.

AU - Kihou, K.

AU - Lee, C. H.

AU - Iyo, A.

AU - Eisaki, H.

AU - Ikeda, H.

AU - Arita, R.

AU - Saito, T.

AU - Onari, S.

AU - Kontani, H.

PY - 2014/12/3

Y1 - 2014/12/3

N2 - 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.

AB - 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.

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SN - 2045-2322

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JO - Scientific Reports

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