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In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure
BiCh(2)-based compounds (Ch: S, Se) are a new series of layered superconductors, and the mechanisms for the emergence of superconductivity in these materials have not yet been elucidated. In this study, we investigate the relationship between crystal structure and superconducting properties of the B...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4597362/ https://www.ncbi.nlm.nih.gov/pubmed/26447333 http://dx.doi.org/10.1038/srep14968 |
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author | Mizuguchi, Yoshikazu Miura, Akira Kajitani, Joe Hiroi, Takafumi Miura, Osuke Tadanaga, Kiyoharu Kumada, Nobuhiro Magome, Eisuke Moriyoshi, Chikako Kuroiwa, Yoshihiro |
author_facet | Mizuguchi, Yoshikazu Miura, Akira Kajitani, Joe Hiroi, Takafumi Miura, Osuke Tadanaga, Kiyoharu Kumada, Nobuhiro Magome, Eisuke Moriyoshi, Chikako Kuroiwa, Yoshihiro |
author_sort | Mizuguchi, Yoshikazu |
collection | PubMed |
description | BiCh(2)-based compounds (Ch: S, Se) are a new series of layered superconductors, and the mechanisms for the emergence of superconductivity in these materials have not yet been elucidated. In this study, we investigate the relationship between crystal structure and superconducting properties of the BiCh(2)-based superconductor family, specifically, optimally doped Ce(1−x)Nd(x)O(0.5)F(0.5)BiS(2) and LaO(0.5)F(0.5)Bi(S(1−y)Se(y))(2). We use powder synchrotron X-ray diffraction to determine the crystal structures. We show that the structure parameter essential for the emergence of bulk superconductivity in both systems is the in-plane chemical pressure, rather than Bi-Ch bond lengths or in-plane Ch-Bi-Ch bond angle. Furthermore, we show that the superconducting transition temperature for all REO(0.5)F(0.5)BiCh(2) superconductors can be determined from the in-plane chemical pressure. |
format | Online Article Text |
id | pubmed-4597362 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45973622015-10-13 In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure Mizuguchi, Yoshikazu Miura, Akira Kajitani, Joe Hiroi, Takafumi Miura, Osuke Tadanaga, Kiyoharu Kumada, Nobuhiro Magome, Eisuke Moriyoshi, Chikako Kuroiwa, Yoshihiro Sci Rep Article BiCh(2)-based compounds (Ch: S, Se) are a new series of layered superconductors, and the mechanisms for the emergence of superconductivity in these materials have not yet been elucidated. In this study, we investigate the relationship between crystal structure and superconducting properties of the BiCh(2)-based superconductor family, specifically, optimally doped Ce(1−x)Nd(x)O(0.5)F(0.5)BiS(2) and LaO(0.5)F(0.5)Bi(S(1−y)Se(y))(2). We use powder synchrotron X-ray diffraction to determine the crystal structures. We show that the structure parameter essential for the emergence of bulk superconductivity in both systems is the in-plane chemical pressure, rather than Bi-Ch bond lengths or in-plane Ch-Bi-Ch bond angle. Furthermore, we show that the superconducting transition temperature for all REO(0.5)F(0.5)BiCh(2) superconductors can be determined from the in-plane chemical pressure. Nature Publishing Group 2015-10-08 /pmc/articles/PMC4597362/ /pubmed/26447333 http://dx.doi.org/10.1038/srep14968 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 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 to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Mizuguchi, Yoshikazu Miura, Akira Kajitani, Joe Hiroi, Takafumi Miura, Osuke Tadanaga, Kiyoharu Kumada, Nobuhiro Magome, Eisuke Moriyoshi, Chikako Kuroiwa, Yoshihiro In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title | In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title_full | In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title_fullStr | In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title_full_unstemmed | In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title_short | In-plane chemical pressure essential for superconductivity in BiCh(2)-based (Ch: S, Se) layered structure |
title_sort | in-plane chemical pressure essential for superconductivity in bich(2)-based (ch: s, se) layered structure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4597362/ https://www.ncbi.nlm.nih.gov/pubmed/26447333 http://dx.doi.org/10.1038/srep14968 |
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