Article Strong electronic interaction and multiple quantum Hall ferromagnetic phases in trilayer graphene

Biswajit Datta ; Santanu Dey ; Abhisek Samanta ; Hitesh Agarwal ; Abhinandan Borah ; Kenji Watanabe SAMURAI ORCID (National Institute for Materials Science) ; Takashi Taniguchi SAMURAI ORCID (National Institute for Materials Science) ; Rajdeep Sensarma ; Mandar M. Deshmukh

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Biswajit Datta, Santanu Dey, Abhisek Samanta, Hitesh Agarwal, Abhinandan Borah, Kenji Watanabe, Takashi Taniguchi, Rajdeep Sensarma, Mandar M. Deshmukh. Strong electronic interaction and multiple quantum Hall ferromagnetic phases in trilayer graphene. Nature Communications. 2017, 8 (), 14518. https://doi.org/10.1038/ncomms14518
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(abstract)

We report evidence of strong electronic interactions and quantum Hall ferromagnetism (QHF) seen in ABA trilayer graphene (TLG). Due to high mobility ∼ 500,000 cm2/Vs and very low disorder reflected in Landau level (LL) widths ∼ 0.5 meV in our device compared to previous studies on trilayer graphene we find all symmetry broken odd filling factor (ν) LL gaps are dominated by interactions. Our self consistent Fock caculation explains the observed fan diagram well and we find a good match between experimentally observed enhanced g factor and theory.

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Keyword: Quantum Hall effect, trilayer graphene, ferromagnetism

Date published: 2017-02-20

Publisher: Springer Science and Business Media LLC

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  • Nature Communications (ISSN: 20411723) vol. 8 14518

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Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1038/ncomms14518

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Updated at: 2025-02-27 08:30:56 +0900

Published on MDR: 2025-02-27 08:30:56 +0900

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