Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh$_2$As$_2$
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913448084897792 |
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| author | Chen, Bo Liu, Hao Wu, Qi-Yi Zhang, Chen Ye, Xue-Qing Zhao, Yin-Zou Song, Jiao-Jiao Tian, Xin-Yi Tan, Ba-Lei Liu, Zheng-Tai Ye, Mao Chen, Zhen-Hua Huang, Yao-Bo Shen, Da-Wei Yuan, Ya-Hua He, Jun Duan, Yu-Xia Meng, Jian-Qiao |
| author_facet | Chen, Bo Liu, Hao Wu, Qi-Yi Zhang, Chen Ye, Xue-Qing Zhao, Yin-Zou Song, Jiao-Jiao Tian, Xin-Yi Tan, Ba-Lei Liu, Zheng-Tai Ye, Mao Chen, Zhen-Hua Huang, Yao-Bo Shen, Da-Wei Yuan, Ya-Hua He, Jun Duan, Yu-Xia Meng, Jian-Qiao |
| contents | In this study, we investigate the electronic structure of a spin-triplet superconductor candidate CeRh$_2$As$_2$ using high-resolution angle-resolved photoemission spectroscopy and density functional theory calculations. Notably, Fermi surface nesting hints at connections to magnetic excitation or quadrupole density wave phenomena, elucidating the superconducting mechanisms. Measured band structures reveal primarily localized 4f electrons, with minor itinerant contributions. Additionally, a transition from localized to itinerant behavior and significant c-f hybridization anisotropy underscore the role of f-electrons in shaping electronic properties. These findings deepen our understanding of CeRh$_2$As$_2$'s unconventional superconductivity and magnetism. Further exploration promises advances in superconductivity research. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_14057 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh$_2$As$_2$ Chen, Bo Liu, Hao Wu, Qi-Yi Zhang, Chen Ye, Xue-Qing Zhao, Yin-Zou Song, Jiao-Jiao Tian, Xin-Yi Tan, Ba-Lei Liu, Zheng-Tai Ye, Mao Chen, Zhen-Hua Huang, Yao-Bo Shen, Da-Wei Yuan, Ya-Hua He, Jun Duan, Yu-Xia Meng, Jian-Qiao Superconductivity Strongly Correlated Electrons In this study, we investigate the electronic structure of a spin-triplet superconductor candidate CeRh$_2$As$_2$ using high-resolution angle-resolved photoemission spectroscopy and density functional theory calculations. Notably, Fermi surface nesting hints at connections to magnetic excitation or quadrupole density wave phenomena, elucidating the superconducting mechanisms. Measured band structures reveal primarily localized 4f electrons, with minor itinerant contributions. Additionally, a transition from localized to itinerant behavior and significant c-f hybridization anisotropy underscore the role of f-electrons in shaping electronic properties. These findings deepen our understanding of CeRh$_2$As$_2$'s unconventional superconductivity and magnetism. Further exploration promises advances in superconductivity research. |
| title | Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh$_2$As$_2$ |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2403.14057 |