Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912283952676864 |
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| author | Zhang, Naiyuan J. Nosov, Pavel A. Sommer, Ophelia Evelyn Wang, Yibang Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Li, J. I. A. |
| author_facet | Zhang, Naiyuan J. Nosov, Pavel A. Sommer, Ophelia Evelyn Wang, Yibang Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Li, J. I. A. |
| contents | Superconductivity in strongly correlated electron systems frequently exhibits broken rotational symmetry, raising fundamental questions about the underlying order parameter symmetry. In this work, we demonstrate that electronic nematicity--driven by Coulomb-mediated rotational symmetry breaking--serves as a crucial link to understanding the nature of superconductivity. Utilizing a novel framework of angle-resolved measurement, we reveal an interring angular interplay among nematicity, superconductivity, and strange metallicity in magic-angle twisted trilayer graphene. By establishing a direct correlation between the preferred superconducting transport direction and the principal axis of the metallic phase, our findings place strong constrains on the symmetry of the superconducting order parameter. This work introduces a new paradigm for probing the microscopic mechanisms governing superconductivity in strongly interacting two-dimensional systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_15767 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band Zhang, Naiyuan J. Nosov, Pavel A. Sommer, Ophelia Evelyn Wang, Yibang Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Li, J. I. A. Mesoscale and Nanoscale Physics Strongly Correlated Electrons Superconductivity Superconductivity in strongly correlated electron systems frequently exhibits broken rotational symmetry, raising fundamental questions about the underlying order parameter symmetry. In this work, we demonstrate that electronic nematicity--driven by Coulomb-mediated rotational symmetry breaking--serves as a crucial link to understanding the nature of superconductivity. Utilizing a novel framework of angle-resolved measurement, we reveal an interring angular interplay among nematicity, superconductivity, and strange metallicity in magic-angle twisted trilayer graphene. By establishing a direct correlation between the preferred superconducting transport direction and the principal axis of the metallic phase, our findings place strong constrains on the symmetry of the superconducting order parameter. This work introduces a new paradigm for probing the microscopic mechanisms governing superconductivity in strongly interacting two-dimensional systems. |
| title | Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2503.15767 |