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Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors
A major problem in the field of high-transition temperature (T(c)) superconductivity is the identification of the electronic instabilities near superconductivity. It is known that the iron-based superconductors exhibit antiferromagnetic order, which competes with the superconductivity. However, in t...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5573309/ https://www.ncbi.nlm.nih.gov/pubmed/28875162 http://dx.doi.org/10.1126/sciadv.1700466 |
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author | Shimojima, Takahiro Malaeb, Walid Nakamura, Asuka Kondo, Takeshi Kihou, Kunihiro Lee, Chul-Ho Iyo, Akira Eisaki, Hiroshi Ishida, Shigeyuki Nakajima, Masamichi Uchida, Shin-ichi Ohgushi, Kenya Ishizaka, Kyoko Shin, Shik |
author_facet | Shimojima, Takahiro Malaeb, Walid Nakamura, Asuka Kondo, Takeshi Kihou, Kunihiro Lee, Chul-Ho Iyo, Akira Eisaki, Hiroshi Ishida, Shigeyuki Nakajima, Masamichi Uchida, Shin-ichi Ohgushi, Kenya Ishizaka, Kyoko Shin, Shik |
author_sort | Shimojima, Takahiro |
collection | PubMed |
description | A major problem in the field of high-transition temperature (T(c)) superconductivity is the identification of the electronic instabilities near superconductivity. It is known that the iron-based superconductors exhibit antiferromagnetic order, which competes with the superconductivity. However, in the nonmagnetic state, there are many aspects of the electronic instabilities that remain unclarified, as represented by the orbital instability and several in-plane anisotropic physical properties. We report a new aspect of the electronic state of the optimally doped iron-based superconductors by using high–energy resolution angle-resolved photoemission spectroscopy. We find spectral evidence for the folded electronic structure suggestive of an antiferroic electronic instability, coexisting with the superconductivity in the nonmagnetic state of Ba(1−x)K(x)Fe(2)As(2). We further establish a phase diagram showing that the antiferroic electronic structure persists in a large portion of the nonmagnetic phase covering the superconducting dome. These results motivate consideration of a key unknown electronic instability, which is necessary for the achievement of high-T(c) superconductivity in the iron-based superconductors. |
format | Online Article Text |
id | pubmed-5573309 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-55733092017-09-05 Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors Shimojima, Takahiro Malaeb, Walid Nakamura, Asuka Kondo, Takeshi Kihou, Kunihiro Lee, Chul-Ho Iyo, Akira Eisaki, Hiroshi Ishida, Shigeyuki Nakajima, Masamichi Uchida, Shin-ichi Ohgushi, Kenya Ishizaka, Kyoko Shin, Shik Sci Adv Research Articles A major problem in the field of high-transition temperature (T(c)) superconductivity is the identification of the electronic instabilities near superconductivity. It is known that the iron-based superconductors exhibit antiferromagnetic order, which competes with the superconductivity. However, in the nonmagnetic state, there are many aspects of the electronic instabilities that remain unclarified, as represented by the orbital instability and several in-plane anisotropic physical properties. We report a new aspect of the electronic state of the optimally doped iron-based superconductors by using high–energy resolution angle-resolved photoemission spectroscopy. We find spectral evidence for the folded electronic structure suggestive of an antiferroic electronic instability, coexisting with the superconductivity in the nonmagnetic state of Ba(1−x)K(x)Fe(2)As(2). We further establish a phase diagram showing that the antiferroic electronic structure persists in a large portion of the nonmagnetic phase covering the superconducting dome. These results motivate consideration of a key unknown electronic instability, which is necessary for the achievement of high-T(c) superconductivity in the iron-based superconductors. American Association for the Advancement of Science 2017-08-25 /pmc/articles/PMC5573309/ /pubmed/28875162 http://dx.doi.org/10.1126/sciadv.1700466 Text en Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Shimojima, Takahiro Malaeb, Walid Nakamura, Asuka Kondo, Takeshi Kihou, Kunihiro Lee, Chul-Ho Iyo, Akira Eisaki, Hiroshi Ishida, Shigeyuki Nakajima, Masamichi Uchida, Shin-ichi Ohgushi, Kenya Ishizaka, Kyoko Shin, Shik Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title | Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title_full | Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title_fullStr | Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title_full_unstemmed | Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title_short | Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
title_sort | antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5573309/ https://www.ncbi.nlm.nih.gov/pubmed/28875162 http://dx.doi.org/10.1126/sciadv.1700466 |
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