دورية أكاديمية
Possible strain-induced enhancement of the superconducting onset transition temperature in infinite-layer nickelates
| العنوان: | Possible strain-induced enhancement of the superconducting onset transition temperature in infinite-layer nickelates |
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| المؤلفون: | Xiaolin Ren, Jiarui Li, Wei-Chih Chen, Qiang Gao, Joshua J. Sanchez, Jordyn Hales, Hailan Luo, Fanny Rodolakis, Jessica L. McChesney, Tao Xiang, Jiangping Hu, Riccardo Comin, Yao Wang, Xingjiang Zhou, Zhihai Zhu |
| المصدر: | Communications Physics, Vol 6, Iss 1, Pp 1-8 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Astrophysics LCC:Physics |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Physics, QC1-999 |
| الوصف: | Abstract The mechanism of unconventional superconductivity in correlated materials remains a great challenge in condensed matter physics. The recent discovery of superconductivity in infinite-layer nickelates, as an analog to high-T c cuprates, has opened a new route to tackle this challenge. By growing 8 nm Pr0.8Sr0.2NiO2 films on the (LaAlO3)0.3(Sr2AlTaO6)0.7 substrate, we successfully raise the superconducting onset transition temperature T c in the widely studied SrTiO3-substrated nickelates from 9 K into 15 K, which indicates compressive strain is an efficient protocol to further enhance superconductivity in infinite-layer nickelates. Additionally, the x-ray absorption spectroscopy, combined with the first-principles and many-body simulations, suggest a crucial role of the hybridization between Ni and O orbitals in the unconventional pairing. These results also suggest the increase of T c be driven by the change of charge-transfer nature that would narrow the origin of general unconventional superconductivity in correlated materials to the covalence of transition metals and ligands. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2399-3650 |
| Relation: | https://doaj.org/toc/2399-3650 |
| DOI: | 10.1038/s42005-023-01464-x |
| URL الوصول: | https://doaj.org/article/32f5e15781f44bd7adbf1120691ec3c1 |
| رقم الأكسشن: | edsdoj.32f5e15781f44bd7adbf1120691ec3c1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 23993650 |
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| DOI: | 10.1038/s42005-023-01464-x |