Strong interactions and isospin symmetry breaking in a supermoiré lattice
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866909156930224128 |
|---|---|
| author | Xie, Yonglong Pierce, Andrew T. Park, Jeong Min Parker, Daniel E. Wang, Jie Ledwith, Patrick Cai, Zhuozhen Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Vishwanath, Ashvin Jarillo-Herrero, Pablo Yacoby, Amir |
| author_facet | Xie, Yonglong Pierce, Andrew T. Park, Jeong Min Parker, Daniel E. Wang, Jie Ledwith, Patrick Cai, Zhuozhen Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Vishwanath, Ashvin Jarillo-Herrero, Pablo Yacoby, Amir |
| contents | In multilayer moiré heterostructures, the interference of multiple twist angles ubiquitously leads to tunable ultra-long-wavelength patterns known as supermoiré lattices. However, their impact on the system's many-body electronic phase diagram remains largely unexplored. We present local compressibility measurements revealing numerous incompressible states resulting from supermoiré-lattice-scale isospin symmetry breaking driven by strong interactions. By using the supermoiré lattice occupancy as a probe of isospin symmetry, we observe an unexpected doubling of the miniband filling near $ν=-2$, possibly indicating a hidden phase transition or normal-state pairing proximal to the superconducting phase. Our work establishes supermoiré lattices as a tunable parameter for designing novel quantum phases and an effective tool for unraveling correlated phenomena in moiré materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_01372 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Strong interactions and isospin symmetry breaking in a supermoiré lattice Xie, Yonglong Pierce, Andrew T. Park, Jeong Min Parker, Daniel E. Wang, Jie Ledwith, Patrick Cai, Zhuozhen Watanabe, Kenji Taniguchi, Takashi Khalaf, Eslam Vishwanath, Ashvin Jarillo-Herrero, Pablo Yacoby, Amir Mesoscale and Nanoscale Physics Strongly Correlated Electrons In multilayer moiré heterostructures, the interference of multiple twist angles ubiquitously leads to tunable ultra-long-wavelength patterns known as supermoiré lattices. However, their impact on the system's many-body electronic phase diagram remains largely unexplored. We present local compressibility measurements revealing numerous incompressible states resulting from supermoiré-lattice-scale isospin symmetry breaking driven by strong interactions. By using the supermoiré lattice occupancy as a probe of isospin symmetry, we observe an unexpected doubling of the miniband filling near $ν=-2$, possibly indicating a hidden phase transition or normal-state pairing proximal to the superconducting phase. Our work establishes supermoiré lattices as a tunable parameter for designing novel quantum phases and an effective tool for unraveling correlated phenomena in moiré materials. |
| title | Strong interactions and isospin symmetry breaking in a supermoiré lattice |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2404.01372 |