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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.18672 |
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| _version_ | 1866910059494113280 |
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| author | Kunitsu, Hayate Ishiguro, Iori Mitsuishi, Natsuki Tsuda, Shunsuke Yaji, Koichiro Wang, Zehao Dai, Pengcheng Yamakawa, Yoichi Kontani, Hiroshi Shimojima, Takahiro |
| author_facet | Kunitsu, Hayate Ishiguro, Iori Mitsuishi, Natsuki Tsuda, Shunsuke Yaji, Koichiro Wang, Zehao Dai, Pengcheng Yamakawa, Yoichi Kontani, Hiroshi Shimojima, Takahiro |
| contents | We investigated the Fermi surface (FS) in the paramagnetic state of Kagome metal CsCr$_3$Sb$_5$ by employing a laser photoemission microscopy. We found a circular FS and two hexagonal FSs around the Brillouin zone (BZ) center. Polarization-dependent measurements further enable us to detect small FS pockets at the BZ boundary. According to the density functional theory calculations, the orbital characters of the FSs were determined from their shape and orientations. We found that the size of the FS is strongly modified for the d$_{xz}$ orbital, suggesting the orbital-dependent correlation effect. These results provide an electronic basis for exploring the interplay of antiferromagnetic/charge density wave order and possible unconventional superconductivity in this compound. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_18672 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Fermi surface of Kagome metal CsCr$_3$Sb$_5$ observed by laser photoemission microscopy Kunitsu, Hayate Ishiguro, Iori Mitsuishi, Natsuki Tsuda, Shunsuke Yaji, Koichiro Wang, Zehao Dai, Pengcheng Yamakawa, Yoichi Kontani, Hiroshi Shimojima, Takahiro Strongly Correlated Electrons We investigated the Fermi surface (FS) in the paramagnetic state of Kagome metal CsCr$_3$Sb$_5$ by employing a laser photoemission microscopy. We found a circular FS and two hexagonal FSs around the Brillouin zone (BZ) center. Polarization-dependent measurements further enable us to detect small FS pockets at the BZ boundary. According to the density functional theory calculations, the orbital characters of the FSs were determined from their shape and orientations. We found that the size of the FS is strongly modified for the d$_{xz}$ orbital, suggesting the orbital-dependent correlation effect. These results provide an electronic basis for exploring the interplay of antiferromagnetic/charge density wave order and possible unconventional superconductivity in this compound. |
| title | Fermi surface of Kagome metal CsCr$_3$Sb$_5$ observed by laser photoemission microscopy |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2603.18672 |