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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| s41598-021-96277-9.pdf | 1.58 MB | Adobe PDF | 見る/開く |
| タイトル: | Pressure-induced reconstitution of Fermi surfaces and spin fluctuations in S-substituted FeSe |
| 著者: | Kuwayama, T. Matsuura, K. Gouchi, J. Yamakawa, Y. Mizukami, Y. Kasahara, S. Matsuda, Y. Shibauchi, T. Kontani, H. Uwatoko, Y. Fujiwara, N. |
| 著者名の別形: | 桑山, 昂典 笠原, 成 松田, 祐司 藤原, 直樹 |
| キーワード: | Condensed-matter physics Physics Superconducting properties and materials |
| 発行日: | 2021 |
| 出版者: | Springer Nature |
| 誌名: | Scientific Reports |
| 巻: | 11 |
| 論文番号: | 17265 |
| 抄録: | FeSe is a unique high-Tc iron-based superconductor in which nematicity, superconductivity, and magnetism are entangled with each other in the P-T phase diagram. We performed ⁷⁷Se-nuclear magnetic resonance measurements under pressures of up to 3.9 GPa on 12% S-substituted FeSe, in which the complex overlap between the nematicity and magnetism are resolved. A pressure-induced Lifshitz transition was observed at 1.0 GPa as an anomaly of the density of states and as double superconducting (SC) domes accompanied by different types of antiferromagnetic (AF) fluctuations. The low-Tc SC dome below 1 GPa is accompanied by strong AF fluctuations, whereas the high-Tc SC dome develops above 1 GPa, where AF fluctuations are fairly weak. These results suggest the importance of the dxy orbital and its intra-orbital coupling for the high-Tc superconductivity. |
| 著作権等: | © The Author(s) 2021 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. |
| URI: | http://hdl.handle.net/2433/281929 |
| DOI(出版社版): | 10.1038/s41598-021-96277-9 |
| PubMed ID: | 34446750 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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