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Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2(As1−xPx)2
https://repo.qst.go.jp/records/77660
https://repo.qst.go.jp/records/7766093812e96-c8f8-419d-bd1e-68c0c37a46c0
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-11-17 | |||||
| タイトル | ||||||
| タイトル | Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2(As1−xPx)2 | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Pelliciari, Jonathan
× Pelliciari, Jonathan× Ishii, Kenji× Huang, Yaobo× Dantz, Marcus× Lu, Xingye× Paul, Olalde-Velasco× N. Strocov, Vladimir× Kasahara, Shigeru× Xing, Lingyi× Wang, Xiancheng× Jin, Changqing× Matsuda, Yuji× Shibauchi, Takasada× Das, Tanmoy× Schmitt, Thorsten× Kenji, Ishii |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Unconventional superconductivity arises at the border between the strong coupling regime with local magnetic moments and the weak coupling regime with itinerant electrons, and stems from the physics of criticality that dissects the two. Unveiling the nature of the quasiparticles close to quantum criticality is fundamental to understand the phase diagram of quantum materials. Here, using resonant inelastic x-ray scattering (RIXS) and Fe Kβ emission spectroscopy (XES), we visualize the coexistence and evolution of local magnetic moments and collective spin excitations across the superconducting dome in isovalently- doped BaFe2(As1-xPx)2 (0.00 <= x <= 0.52). Collective magnetic excitations resolved by RIXS are gradually hardened, whereas XES reveals a strong suppression of the local magnetic moment upon doping. This relationship is captured by an intermediate coupling theory, explicitly accounting for the partially localized and itinerant nature of the electrons in Fe pnictides. Finally, our work identifies a local-itinerant spin fluctuations channel through which the local moments transfer spin excitations to the particle-hole (paramagnons) continuum across the superconducting dome. | |||||
| 書誌情報 |
Communications Physics 巻 2, p. 139, 発行日 2019-11 |
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| 出版者 | ||||||
| 出版者 | Springer Nature | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2399-3650 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s42005-019-0236-3 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s42005-019-0236-3 | |||||
