Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates
Abstract The quest to unravel the intricacies of high-Tc superconductivity and strongly correlated electrons in cuprates has spurred a novel focus on direct probing of the CuO2 planes through scanning tunneling microscopy. Infinite-layer (IL) cuprates, featuring a CuO2-terminated surface, emerge as...
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| Format: | Article |
| Language: | English |
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Springer
2025-05-01
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| Series: | AAPPS Bulletin |
| Online Access: | https://doi.org/10.1007/s43673-025-00152-y |
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| author | Rui-Feng Wang Can-Li Song Xu-Cun Ma Qi-Kun Xue |
| author_facet | Rui-Feng Wang Can-Li Song Xu-Cun Ma Qi-Kun Xue |
| author_sort | Rui-Feng Wang |
| collection | DOAJ |
| description | Abstract The quest to unravel the intricacies of high-Tc superconductivity and strongly correlated electrons in cuprates has spurred a novel focus on direct probing of the CuO2 planes through scanning tunneling microscopy. Infinite-layer (IL) cuprates, featuring a CuO2-terminated surface, emerge as optimal systems for this investigation. Leveraging controllable growth via molecular beam epitaxy, both electron- and hole-doped IL cuprates are realized, with surface structure and c-axis length serving as distinctive markers. A consistent pattern in the Mott transition is established, revealing that doping merely shifts the Fermi level without inducing changes in the Mott band structure, thereby suggesting a self-modulation doping scenario. Furthermore, the identification of a nodeless superconducting gap in the CuO2 planes challenges conventional notions derived from charge reservoir layers, advocating for a quantum well interpretation of cuprate superconductivity. This review sheds light on the distinct roles played by CuO2 layers and charge reservoir layers, promising a more profound comprehension of cuprate superconductivity through the lens of the CuO2 surface. |
| format | Article |
| id | doaj-art-77c08f0e2ad948d997a9b62ce045f8e7 |
| institution | OA Journals |
| issn | 2309-4710 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Springer |
| record_format | Article |
| series | AAPPS Bulletin |
| spelling | doaj-art-77c08f0e2ad948d997a9b62ce045f8e72025-08-20T02:25:08ZengSpringerAAPPS Bulletin2309-47102025-05-0135111010.1007/s43673-025-00152-yUnveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cupratesRui-Feng Wang0Can-Li Song1Xu-Cun Ma2Qi-Kun Xue3Department of Physics, Tsinghua UniversityDepartment of Physics, Tsinghua UniversityDepartment of Physics, Tsinghua UniversityDepartment of Physics, Tsinghua UniversityAbstract The quest to unravel the intricacies of high-Tc superconductivity and strongly correlated electrons in cuprates has spurred a novel focus on direct probing of the CuO2 planes through scanning tunneling microscopy. Infinite-layer (IL) cuprates, featuring a CuO2-terminated surface, emerge as optimal systems for this investigation. Leveraging controllable growth via molecular beam epitaxy, both electron- and hole-doped IL cuprates are realized, with surface structure and c-axis length serving as distinctive markers. A consistent pattern in the Mott transition is established, revealing that doping merely shifts the Fermi level without inducing changes in the Mott band structure, thereby suggesting a self-modulation doping scenario. Furthermore, the identification of a nodeless superconducting gap in the CuO2 planes challenges conventional notions derived from charge reservoir layers, advocating for a quantum well interpretation of cuprate superconductivity. This review sheds light on the distinct roles played by CuO2 layers and charge reservoir layers, promising a more profound comprehension of cuprate superconductivity through the lens of the CuO2 surface.https://doi.org/10.1007/s43673-025-00152-y |
| spellingShingle | Rui-Feng Wang Can-Li Song Xu-Cun Ma Qi-Kun Xue Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates AAPPS Bulletin |
| title | Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates |
| title_full | Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates |
| title_fullStr | Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates |
| title_full_unstemmed | Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates |
| title_short | Unveiling high-Tc superconductivity: probing CuO2 planes in infinite-layer cuprates |
| title_sort | unveiling high tc superconductivity probing cuo2 planes in infinite layer cuprates |
| url | https://doi.org/10.1007/s43673-025-00152-y |
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