Merohedral disorder and impurity impacts on superconductivity of fullerenes
| العنوان: | Merohedral disorder and impurity impacts on superconductivity of fullerenes |
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| المؤلفون: | Qi-Kun Xue, Ming-Qiang Ren, Can-Li Song, Shu-Ze Wang, Sha Han, Xucun Ma, Fang-Jun Cheng |
| المصدر: | Communications Physics, Vol 4, Iss 1, Pp 1-8 (2021) |
| بيانات النشر: | Nature Portfolio, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, Fullerene, Phonon, QC1-999, General Physics and Astronomy, FOS: Physical sciences, Astrophysics, law.invention, Superconductivity (cond-mat.supr-con), Condensed Matter - Strongly Correlated Electrons, law, Condensed Matter::Superconductivity, Atom, Antiferromagnetism, Cuprate, Computer Science::Databases, Superconductivity, Condensed Matter - Materials Science, Condensed matter physics, Strongly Correlated Electrons (cond-mat.str-el), Condensed Matter - Superconductivity, Physics, Materials Science (cond-mat.mtrl-sci), QB460-466, Quasiparticle, Condensed Matter::Strongly Correlated Electrons, Scanning tunneling microscope |
| الوصف: | Local quasiparticle states around impurities provide essential insight into the mechanism of unconventional superconductivity, especially when the candidate materials are proximate to an antiferromagnetic Mott-insulating phase. While such states have been reported in atom-based cuprates and iron-based compounds, they are unexplored in organic superconductors which feature tunable molecular orientation. Here we employ scanning tunneling microscopy and spectroscopy to reveal multiple forms of robustness of an exotic $s$-wave superconductivity in epitaxial Rb$_3$C$_{60}$ films against merohedral disorder, non-magnetic single impurities and step edges at the atomic scale. Also observed have been Yu-Shiba-Rusinov (YSR) states induced by deliberately incurred Fe adatoms that act as magnetic scatters. The bound states display abrupt spatial decay and vary in energy with the Fe adatom registry. Our results and the universal optimal superconductivity at half-filling point towards local electron pairing in which the multiorbital electronic correlations and intramolecular phonons together drive the high-temperature superconductivity of doped fullerenes. Comment: 25 pages, 5 figures, 5 supplemental figures |
| اللغة: | English |
| تدمد: | 2399-3650 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::852e3692cc02a8b8e334e49a58c9af86 https://doaj.org/article/dc59a1b3d3e1406486ead20d5dc98c6f |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....852e3692cc02a8b8e334e49a58c9af86 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23993650 |
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