Strong interactions and isospin symmetry breaking in a supermoiré lattice Article Swipe

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Yonglong Xie , Andrew T. Pierce , Jeong Min Park , Daniel E. Parker , Jie Wang , Patrick J. Ledwith , Zhuozhen Cai , Kenji Watanabe , Takashi Taniguchi , Eslam Khalaf , Ashvin Vishwanath , Pablo Jarillo‐Herrero , Amir Yacoby ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2404.01372

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.

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Isospin Symmetry breaking Lattice (music) Physics Condensed matter physics Theoretical physics Particle physics Acoustics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2404.01372
PDF: https://arxiv.org/pdf/2404.01372
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Cited By: 1
Related Works: 10
OpenAlex ID: https://openalex.org/W4393924620

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DOI: https://doi.org/10.48550/arxiv.2404.01372

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Title: Strong interactions and isospin symmetry breaking in a supermoiré lattice

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Language: en

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Publication year: 2024

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Publication date: 2024-04-01

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Authors: Yonglong Xie, Andrew T. Pierce, Jeong Min Park, Daniel E. Parker, Jie Wang, Patrick J. Ledwith, Zhuozhen Cai, Kenji Watanabe, Takashi Taniguchi, Eslam Khalaf, Ashvin Vishwanath, Pablo Jarillo‐Herrero, Amir Yacoby

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Landing page: https://arxiv.org/abs/2404.01372

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Concepts: Isospin, Symmetry breaking, Lattice (music), Physics, Condensed matter physics, Theoretical physics, Particle physics, Acoustics

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Cited by: 1

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