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PreprintCC BYarXiv (Cornell University)

Competing Orders Driven by Wigner Crystal Phase in Rhombohedral Graphene

  • Zekang Zhou1
  • Kilian Krötzsch1
  • Raphaël Ayache2
  • Yonggen Li1
  • Sandeep Joy
  • Kenji Watanabe3
  • Takashi Taniguchi4
  • Moty Heiblum5
  • P. Roulleau2
  • Mitali Banerjee6,1
6 affiliations
  1. 1Institute of Physics , Ecole Polytechnique Fédérale de Lausanne , Switzerland
  2. 2SPEC , CEA , CNRS , Université Paris-Saclay , CEA Saclay , 91191 Gif sur Yvette Cedex France
  3. 3Research Center for Functional Materials , National Institute for Materials Science , Japan
  4. 4International Center for Materials Nanoarchitectonics , National Institute for Materials Science , Japan
  5. 5Braun Center for Submicron Research , Department of Condensed Matter Physics , Rehovot , Israel
  6. 6Center for Quantum Science and Engineering , Ecole Polytechnique Fédérale de Lausanne , Switzerland
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Abstract

Rhombohedral graphene systems provide a unique platform where strong electronic interactions and nontrivial band topology coexist at low carrier densities and high displacement fields, giving rise to a rich landscape of emergent electronic phases. Here, we report that the highly insulating state on the low-density side of chiral superconductivity in rhombohedral pentalayer graphene (R5G) corresponds to a Wigner crystal (WC) phase. In addition, a hole-doped metallic Wigner crystal (h-mWC) phase emerges near the WC boundary. Under an out-of-plane magnetic field, the system hosts competing magnetic-field-stabilized superconductivity (fSC) and unconventional reentrant quantum Hall (RIQH) states. These emergent phases are closely connected to the underlying WC and mWC states and evolve continuously across phase boundaries. Our results establish that WC phase plays an important role in the phase diagram of rhombohedral multilayer graphene and highlight its connection to a rich landscape of emergent phases.

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Cite

BibTeXRIS
BibTeX
@misc{zhou2026competing,
  title = {{Competing Orders Driven by Wigner Crystal Phase in Rhombohedral Graphene}},
  author = {Zekang Zhou and Kilian Krötzsch and Raphaël Ayache and Yonggen Li and Sandeep Joy and Kenji Watanabe and Takashi Taniguchi and Moty Heiblum and P. Roulleau and Mitali Banerjee},
  howpublished = {arXiv (Cornell University)},
  year = {2026},
  month = jul,
  doi = {10.48550/arxiv.2607.15014},
  url = {https://arxiv.org/abs/2607.15014},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Competing Orders Driven by Wigner Crystal Phase in Rhombohedral Graphene
AU  - Zekang Zhou
AU  - Kilian Krötzsch
AU  - Raphaël Ayache
AU  - Yonggen Li
AU  - Sandeep Joy
AU  - Kenji Watanabe
AU  - Takashi Taniguchi
AU  - Moty Heiblum
AU  - P. Roulleau
AU  - Mitali Banerjee
PY  - 2026
DA  - 2026/07/16
PB  - arXiv (Cornell University)
DO  - 10.48550/arxiv.2607.15014
UR  - https://arxiv.org/abs/2607.15014
AB  - Rhombohedral graphene systems provide a unique platform where strong electronic interactions and nontrivial band topology coexist at low carrier densities and high displacement fields, giving rise to a rich landscape of emergent electronic phases. Here, we report that the highly insulating state on the low-density side of chiral superconductivity in rhombohedral pentalayer graphene (R5G) corresponds to a Wigner crystal (WC) phase. In addition, a hole-doped metallic Wigner crystal (h-mWC) phase emerges near the WC boundary. Under an out-of-plane magnetic field, the system hosts competing magnetic-field-stabilized superconductivity (fSC) and unconventional reentrant quantum Hall (RIQH) states. These emergent phases are closely connected to the underlying WC and mWC states and evolve continuously across phase boundaries. Our results establish that WC phase plays an important role in the phase diagram of rhombohedral multilayer graphene and highlight its connection to a rich landscape of emergent phases.
SN  - 2331-8422
ER  -