Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)

We report peculiar momentum-dependent anisotropy in the superconducting gap observed by angle-resolved photoemission spectroscopy in BaFe(2)(As(1-x)P(x))(2) (x = 0.30, T(c) = 30 K). Strongly anisotropic gap has been found only in the electron Fermi surface while the gap on the entire hole Fermi surf...

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Autores principales: 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, C. H., Iyo, A., Eisaki, H., Ikeda, H., Arita, R., Saito, T., Onari, S., Kontani, H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4252890/
https://www.ncbi.nlm.nih.gov/pubmed/25465027
http://dx.doi.org/10.1038/srep07292
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author 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, C. H.
Iyo, A.
Eisaki, H.
Ikeda, H.
Arita, R.
Saito, T.
Onari, S.
Kontani, H.
author_facet 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, C. H.
Iyo, A.
Eisaki, H.
Ikeda, H.
Arita, R.
Saito, T.
Onari, S.
Kontani, H.
author_sort Yoshida, T.
collection PubMed
description We report peculiar momentum-dependent anisotropy in the superconducting gap observed by angle-resolved photoemission spectroscopy in BaFe(2)(As(1-x)P(x))(2) (x = 0.30, T(c) = 30 K). 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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spelling pubmed-42528902014-12-08 Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2) 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, C. H. Iyo, A. Eisaki, H. Ikeda, H. Arita, R. Saito, T. Onari, S. Kontani, H. Sci Rep Article We report peculiar momentum-dependent anisotropy in the superconducting gap observed by angle-resolved photoemission spectroscopy in BaFe(2)(As(1-x)P(x))(2) (x = 0.30, T(c) = 30 K). 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. Nature Publishing Group 2014-12-03 /pmc/articles/PMC4252890/ /pubmed/25465027 http://dx.doi.org/10.1038/srep07292 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
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, C. H.
Iyo, A.
Eisaki, H.
Ikeda, H.
Arita, R.
Saito, T.
Onari, S.
Kontani, H.
Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title_full Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title_fullStr Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title_full_unstemmed Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title_short Anisotropy of the superconducting gap in the iron-based superconductor BaFe(2)(As(1-x)P(x))(2)
title_sort anisotropy of the superconducting gap in the iron-based superconductor bafe(2)(as(1-x)p(x))(2)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4252890/
https://www.ncbi.nlm.nih.gov/pubmed/25465027
http://dx.doi.org/10.1038/srep07292
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