Electronic Origin of High-Tc Maximization and Persistence in Trilayer Cuprate Superconductors
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2022
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| author | Luo, Xiangyu Chen, Hao Li, Yinghao Gao, Qiang Yin, Chaohui Yan, Hongtao Miao, Taimin Luo, Hailan Shu, Yingjie Chen, Yiwen Lin, Chengtian Zhang, Shenjin Wang, Zhimin Zhang, Fengfeng Yang, Feng Peng, Qinjun Liu, Guodong Zhao, Lin Xu, Zuyan Xiang, Tao Zhou, X. J. |
| author_facet | Luo, Xiangyu Chen, Hao Li, Yinghao Gao, Qiang Yin, Chaohui Yan, Hongtao Miao, Taimin Luo, Hailan Shu, Yingjie Chen, Yiwen Lin, Chengtian Zhang, Shenjin Wang, Zhimin Zhang, Fengfeng Yang, Feng Peng, Qinjun Liu, Guodong Zhao, Lin Xu, Zuyan Xiang, Tao Zhou, X. J. |
| contents | In high temperature cuprate superconductors, it was found that the superconducting transition temperature Tc depends on the number of CuO2 planes (n) in the structural unit and the maximum Tc is realized in the trilayer system (n=3). It was also found that the trilayer superconductors exhibit an unusual phase diagram that Tc keeps nearly constant in the overdoped region which is in strong contrast to the Tc decrease usually found in other cuprate superconductors. The electronic origin of the Tc maximization in the trilayer superconductors and its high Tc persistence in the overdoped region remains unclear. By taking high resolution laser-based angle resolved photoemission (ARPES) measurements, here we report our revelation of the microscopic origin of the unusual superconducting properties in the trilayer superconductors. For the first time we have observed the trilayer splitting in Bi2Sr2Ca2Cu3O10+d (Bi2223) superconductor. The observed Fermi surface, band structures, superconducting gap and the selective Bogoliubov band hybridizations can be well described by a three-layer interaction model. Quantitative information of the microscopic processes involving intra- and interlayer hoppings and pairings are extracted. The electronic origin of the maximum Tc in Bi2223 and the persistence of the high Tc in the overdoped region is revealed. These results provide key insights in understanding high Tc superconductivity and pave a way to further enhance Tc in the cuprate superconductors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_06348 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Electronic Origin of High-Tc Maximization and Persistence in Trilayer Cuprate Superconductors Luo, Xiangyu Chen, Hao Li, Yinghao Gao, Qiang Yin, Chaohui Yan, Hongtao Miao, Taimin Luo, Hailan Shu, Yingjie Chen, Yiwen Lin, Chengtian Zhang, Shenjin Wang, Zhimin Zhang, Fengfeng Yang, Feng Peng, Qinjun Liu, Guodong Zhao, Lin Xu, Zuyan Xiang, Tao Zhou, X. J. Superconductivity Strongly Correlated Electrons In high temperature cuprate superconductors, it was found that the superconducting transition temperature Tc depends on the number of CuO2 planes (n) in the structural unit and the maximum Tc is realized in the trilayer system (n=3). It was also found that the trilayer superconductors exhibit an unusual phase diagram that Tc keeps nearly constant in the overdoped region which is in strong contrast to the Tc decrease usually found in other cuprate superconductors. The electronic origin of the Tc maximization in the trilayer superconductors and its high Tc persistence in the overdoped region remains unclear. By taking high resolution laser-based angle resolved photoemission (ARPES) measurements, here we report our revelation of the microscopic origin of the unusual superconducting properties in the trilayer superconductors. For the first time we have observed the trilayer splitting in Bi2Sr2Ca2Cu3O10+d (Bi2223) superconductor. The observed Fermi surface, band structures, superconducting gap and the selective Bogoliubov band hybridizations can be well described by a three-layer interaction model. Quantitative information of the microscopic processes involving intra- and interlayer hoppings and pairings are extracted. The electronic origin of the maximum Tc in Bi2223 and the persistence of the high Tc in the overdoped region is revealed. These results provide key insights in understanding high Tc superconductivity and pave a way to further enhance Tc in the cuprate superconductors. |
| title | Electronic Origin of High-Tc Maximization and Persistence in Trilayer Cuprate Superconductors |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2210.06348 |