| アイテムタイプ |
共通アイテムタイプ(1) |
| 公開日 |
2025-02-20 |
| タイトル |
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タイトル |
Quadrupling the depairing current density in the iron-based superconductor SmFeAsO1–xHx |
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言語 |
en |
| その他のタイトル |
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その他のタイトル |
Quadrupling the depairing current density in the iron-based superconductor SmFeAsO<inf>1–x</inf>H<inf>x</inf> |
|
言語 |
en |
| 著者 |
Miura, Masashi
Eley, Serena
Iida, Kazumasa
Hanzawa, Kota
Matsumoto, Jumpei
Hiramatsu, Hidenori
Ogimoto, Yuki
Suzuki, Takumi
Kobayashi, Tomoki
Ozaki, Toshinori
Kurokawa, Hodaka
Sekiya, Naoto
Yoshida, Ryuji
Kato, Takeharu
岡田, 達典
Okazaki, Hiroyuki
Yamaki, Tetsuya
Hänisch, Jens
Awaji, Satoshi
Maeda, Atsutaka
Maiorov, Boris
Hosono, Hideo
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| 著作権関連情報 |
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|
権利情報 |
Copyright (c) The Author(s) 2024. |
| 著作権関連情報 |
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権利情報Resource |
http://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Iron-based 1111-type superconductors display high critical temperatures and relatively high critical current densities Jc. The typical approach to increasing Jc is to introduce defects to control dissipative vortex motion. However, when optimized, this approach is theoretically predicted to be limited to achieving a maximum Jc of only ∼30% of the depairing current density Jd, which depends on the coherence length and the penetration depth. Here we dramatically boost Jc in SmFeAsO1–xHx films using a thermodynamic approach aimed at increasing Jd and incorporating vortex pinning centres. Specifically, we reduce the penetration depth, coherence length and critical field anisotropy by increasing the carrier density through high electron doping using H substitution. Remarkably, the quadrupled Jd reaches 415 MA cm–2, a value comparable to cuprates. Finally, by introducing defects using proton irradiation, we obtain high Jc values in fields up to 25 T. We apply this method to other iron-based superconductors and achieve a similar enhancement of current densities. |
|
言語 |
en |
| 書誌情報 |
en : Nature Materials
巻 23,
号 10,
p. 1370-1378,
発行日 2024-07-18
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| 出版社 |
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出版者 |
Nature Research |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| DOI |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1038/s41563-024-01952-7 |
| NCID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11733676 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1476-1122 |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1476-4660 |
| 研究者情報 |
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|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/100001802_ja.html |
| 論文ID（連携） |
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|
値 |
10448693 |
| 連携ID |
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|
値 |
13044 |
10448693.pdf (2.2 MB)
