Journal article Symmetry broken states at high displacement fields in ABA trilayer graphene
Simrandeep Kaur (author) (Search by this author)
;
Unmesh Ghorai (author) (Search by this author)
;
Abhisek Samanta (author) (Search by this author)
;
Kenji Watanabe (author) (Search by this author)
ORCID https://orcid.org/0000-0003-3701-8119
National Institute for Materials Science
SAMURAI NIMS Researchers Directory SAMURAI
ORCID SAMURAI ;
Takashi Taniguchi (author) (Search by this author)
ORCID https://orcid.org/0000-0002-1467-3105
National Institute for Materials Science
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ORCID SAMURAI ;
Rajdeep Sensarma (author) (Search by this author)
;
Aveek Bid (author) (Search by this author)
2025A01390G_NLDiracgully.pdf
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Simrandeep Kaur, Unmesh Ghorai, Abhisek Samanta, Kenji Watanabe, Takashi Taniguchi, Rajdeep Sensarma, Aveek Bid. Symmetry broken states at high displacement fields in ABA trilayer graphene. Physical Review B. 2025, 112 (16), L161103. https://doi.org/10.1103/nm8b-5vgm

Description:

(abstract)

We present a comprehensive study of magnetotransport in high-mobility trilayer graphene (TLG) devices under a transverse displacement field, focusing on symmetry-broken Landau levels (LLs) from monolayer-like and bilayer-like bands. A striking displacement-field-induced enhancement of the Landé 𝑔-factor is observed in the zeroth Landau level of the monolayer-like band, highlighting the formation of interaction-driven quantum Hall states. Additionally, we find a rich landscape of LL crossings in the Dirac gully region, accompanied by phase transitions between spin-, gully, and valley-polarized LLs. These experimental observations are successfully modeled using calculations based on optimized tight-binding parameters. Furthermore, our results reveal significant particle-hole asymmetry in the sequence of LLs in the Dirac gullies, attributed to differing 𝑔-factor values for electrons and holes. This asymmetry underscores the limitations of noninteracting models in capturing the complexities of multiband systems. This work provides insights into the interplay of symmetry-breaking mechanisms and enhanced interaction effects in Bernal-stacked trilayer graphene, advancing our understanding of quantum transport phenomena in multiband systems.

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Keyword: Trilayer graphene, Landau levels, Quantum Hall effect

Date published: 2025-10-01

Publisher: American Physical Society (APS)

Journal:

  • Physical Review B (ISSN: 1550235X) vol. 112 issue. 16 L161103

Funding:

  • U.S. Army Combat Capabilities Development Command FA5209 22P0166
  • Japan Society for the Promotion of Science 19H05790
  • Japan Society for the Promotion of Science 20H00354
  • Japan Society for the Promotion of Science 21H05233

Manuscript type: Author's version (Accepted manuscript)

MDR DOI:

First published URL: https://doi.org/10.1103/nm8b-5vgm

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Updated at: 2026-06-26 17:13:51 +0900

Published on MDR: 2026-06-26 18:28:48 +0900

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