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

Biswajit Datta; Santanu Dey; Abhisek Samanta; Hitesh Agarwal; Abhinandan Borah; Kenji Watanabe; Takashi Taniguchi; Rajdeep Sensarma; Mandar M. Deshmukh

doi:10.1038/ncomms14518

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

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

Download file (1.79MB)
Download as zip (1.45MB)

コレクション

引用

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

(BibTeX)

説明:

(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.

権利情報: