ACS Publications. Most Trusted. Most Cited. Most Read
Band Gap Opening in Bilayer Graphene-CrCl3/CrBr3/CrI3 van der Waals Interfaces
My Activity
    Letter

    Band Gap Opening in Bilayer Graphene-CrCl3/CrBr3/CrI3 van der Waals Interfaces
    Click to copy article linkArticle link copied!

    • Giulia Tenasini*
      Giulia Tenasini
      Department of Quantum Matter Physics  and  Group of Applied Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
      *Email: [email protected]
    • David Soler-Delgado
      David Soler-Delgado
      Department of Quantum Matter Physics  and  Group of Applied Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
    • Zhe Wang
      Zhe Wang
      Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
      MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
      More by Zhe Wang
    • Fengrui Yao
      Fengrui Yao
      Department of Quantum Matter Physics  and  Group of Applied Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
      More by Fengrui Yao
    • Dumitru Dumcenco
      Dumitru Dumcenco
      Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
    • Enrico Giannini
      Enrico Giannini
      Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
    • Kenji Watanabe
      Kenji Watanabe
      Research Center for Functional Materials, NIMS, 1-1 Namiki, Tsukuba 305-0044, Japan
    • Takashi Taniguchi
      Takashi Taniguchi
      International Center for Materials Nanoarchitectonics, NIMS, 1-1 Namiki, Tsukuba 305-0044, Japan
    • Christian Moulsdale
      Christian Moulsdale
      National Graphene Institute  and  School of Physics & Astronomy, University of Manchester, Manchester M13 9PL, U.K.
    • Aitor Garcia-Ruiz
      Aitor Garcia-Ruiz
      National Graphene Institute  and  School of Physics & Astronomy, University of Manchester, Manchester M13 9PL, U.K.
    • Vladimir I. Fal’ko
      Vladimir I. Fal’ko
      National Graphene Institute  and  School of Physics & Astronomy, University of Manchester, Manchester M13 9PL, U.K.
      Henry Royce Institute for Advanced Materials, Manchester M13 9PL, U.K.
    • Ignacio Gutiérrez-Lezama
      Ignacio Gutiérrez-Lezama
      Department of Quantum Matter Physics  and  Group of Applied Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
    • Alberto F. Morpurgo*
      Alberto F. Morpurgo
      Department of Quantum Matter Physics  and  Group of Applied Physics, University of Geneva, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
      *Email: [email protected]
    Other Access OptionsSupporting Information (1)

    Nano Letters

    Cite this: Nano Lett. 2022, 22, 16, 6760–6766
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.nanolett.2c02369
    Published August 5, 2022
    Copyright © 2022 American Chemical Society

    Abstract

    Click to copy section linkSection link copied!
    Abstract Image

    We report experimental investigations of transport through bilayer graphene (BLG)/chromium trihalide (CrX3; X = Cl, Br, I) van der Waals interfaces. In all cases, a large charge transfer from BLG to CrX3 takes place (reaching densities in excess of 1013 cm–2), and generates an electric field perpendicular to the interface that opens a band gap in BLG. We determine the gap from the activation energy of the conductivity and find excellent agreement with the latest theory accounting for the contribution of the σ bands to the BLG dielectric susceptibility. We further show that for BLG/CrCl3 and BLG/CrBr3 the band gap can be extracted from the gate voltage dependence of the low-temperature conductivity, and use this finding to refine the gap dependence on the magnetic field. Our results allow a quantitative comparison of the electronic properties of BLG with theoretical predictions and indicate that electrons occupying the CrX3 conduction band are correlated.

    Copyright © 2022 American Chemical Society

    Read this article

    To access this article, please review the available access options below.

    Get instant access

    Purchase Access

    Read this article for 48 hours. Check out below using your ACS ID or as a guest.

    Recommended

    Access through Your Institution

    You may have access to this article through your institution.

    Your institution does not have access to this content. Add or change your institution or let them know you’d like them to include access.

    Supporting Information

    Click to copy section linkSection link copied!

    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.nanolett.2c02369.

    • Transfer curves for BLG-on-CrBr3 and BLG-on-CrI3 devices; magnetic field dependence of the charge neutrality point (PDF)

    Terms & Conditions

    Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html.

    Cited By

    Click to copy section linkSection link copied!
    Citation Statements
    Explore this article's citation statements on scite.ai

    This article is cited by 10 publications.

    1. Shengyao Li, Xueyan Wang, Zherui Yang, Lijuan Zhang, Siew Lang Teo, Ming Lin, Ri He, Naizhou Wang, Peng Song, Wanghao Tian, Xian Jun Loh, Qiang Zhu, Bo Sun, X. Renshaw Wang. Giant Third-Order Nonlinear Hall Effect in Misfit Layer Compound (SnS)1.17(NbS2)3. ACS Applied Materials & Interfaces 2024, 16 (8) , 11043-11049. https://doi.org/10.1021/acsami.3c18319
    2. Pin Lyu, Joachim Sødequist, Xiaoyu Sheng, Zhizhan Qiu, Anton Tadich, Qile Li, Mark T. Edmonds, Meng Zhao, Jesús Redondo, Martin Švec, Peng Song, Thomas Olsen, Jiong Lu. Gate-Tunable Renormalization of Spin-Correlated Flat-Band States and Bandgap in a 2D Magnetic Insulator. ACS Nano 2023, 17 (16) , 15441-15448. https://doi.org/10.1021/acsnano.3c01038
    3. Onur Tosun, Preetha Sarkar, Chang Qian, Matthew Gilbert, Qian Chen, Nadya Mason. Tunable magnetic confinement effect in a magnetic superlattice of graphene. npj 2D Materials and Applications 2024, 8 (1) https://doi.org/10.1038/s41699-024-00468-7
    4. Igor Rozhansky, Vladimir Fal'ko. Possible Wigner states in CrI 3 heterostructures with graphene: A tight-binding model perspective. Physical Review Materials 2024, 8 (7) https://doi.org/10.1103/PhysRevMaterials.8.074007
    5. Juyeong Jeong, Do Hoon Kiem, Dan Guo, Ruihuan Duan, Kenji Watanabe, Takashi Taniguchi, Zheng Liu, Myung Joon Han, Shoujun Zheng, Heejun Yang. Spin‐Selective Memtransistors with Magnetized Graphene. Advanced Materials 2024, 36 (15) https://doi.org/10.1002/adma.202310291
    6. Ping Wang, Fuzhuo Lian, Renjun Du, Xiaofan Cai, Song Bao, Yaqing Han, Jingkuan Xiao, Kenji Watanabe, Takashi Taniguchi, Jinsheng Wen, Hongxin Yang, Alexander S. Mayorov, Lei Wang, Geliang Yu. Gate control of 2D magnetism in three- and four-layers CrI3/graphene heterostructures. Applied Physics Letters 2024, 124 (1) https://doi.org/10.1063/5.0178916
    7. C. Cardoso, A. T. Costa, A. H. MacDonald, J. Fernández-Rossier. Strong magnetic proximity effect in van der Waals heterostructures driven by direct hybridization. Physical Review B 2023, 108 (18) https://doi.org/10.1103/PhysRevB.108.184423
    8. Soyun Kim, Jeonghoon Hong, Kenji Watanabe, Takashi Taniguchi, Joseph Falson, Jeongwoo Kim, Youngwook Kim. Spin and valley-polarized multiple Fermi surfaces of α -RuCl3/bilayer graphene heterostructure. Applied Physics Letters 2023, 123 (17) https://doi.org/10.1063/5.0170810
    9. Ivan S. Sokolov, Dmitry V. Averyanov, Oleg E. Parfenov, Alexander N. Taldenkov, Maxim G. Rybin, Andrey M. Tokmachev, Vyacheslav G. Storchak. Proximity Coupling of Graphene to a Submonolayer 2D Magnet. Small 2023, 19 (28) https://doi.org/10.1002/smll.202301295
    10. M. E. Carrington, A. R. Frey, B. A. Meggison. Effects of different 3D QED vertex Ansätze on the critical coupling. Physical Review D 2023, 107 (5) https://doi.org/10.1103/PhysRevD.107.056012

    Nano Letters

    Cite this: Nano Lett. 2022, 22, 16, 6760–6766
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.nanolett.2c02369
    Published August 5, 2022
    Copyright © 2022 American Chemical Society

    Article Views

    3022

    Altmetric

    -

    Citations

    Learn about these metrics

    Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.

    Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.

    The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated.