Explanation of an unexpected occurrence of ν = ±1/2 fractional quantum Hall effect states in monolayer graphene

被引：9
|
作者：
Jacak, Janusz E. [1 ]
机构：
[1] Wroclaw Univ Sci & Technol, Dept Quantum Technol, Wyb Wyspianskiego 27, PL-50370 Wroclaw, Poland
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2019年 / 31卷 / 47期
关键词：
monolayer graphene; fractional quantum Hall effect (FQHE); even denominator filling rate; beyond composite fermions;
D O I：
10.1088/1361-648X/ab3998
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Recent experiment reveals the appearance of incompressible fractional quantum Ilan effect states in monolayer graphene at nu = +/- 1/2 and +/- 1/4,+/- 3/4 substituting the compressible Hall metal states at these fillings in the lowest Landau level in a narrow magnetic field window depending on the sample parameters. Simultaneously, none such behavior has been observed either for nu = +/- 3/2 or +/- 5/4, +/- 7/4. We propose an explanation of these observations in terms of homotopy of monolayer graphene in consistence with a general theory of correlated states in planar Hall systems.
引用
收藏
页数：9
相关论文
共 50 条
  • [21] Skyrmion excitations in monolayer ν=1 and bilayer ν=2 quantum Hall states
    Kumada, N
    Sawada, A
    Ezawa, ZF
    Nagahama, S
    Azuhata, H
    Saku, T
    PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 2001, 87 : 935 - 936
  • [22] Unconventional Sequence of Fractional Quantum Hall States in Suspended Graphene
    Feldman, Benjamin E.
    Krauss, Benjamin
    Smet, Jurgen H.
    Yacoby, Amir
    SCIENCE, 2012, 337 (6099) : 1196 - 1199
  • [23] Tunable Electron Interactions and Fractional Quantum Hall States in Graphene
    Papic, Z.
    Thomale, R.
    Abanin, D. A.
    PHYSICAL REVIEW LETTERS, 2011, 107 (17)
  • [24] Theoretical expectations for a fractional quantum Hall effect in graphene
    Papic, Z.
    Goerbig, M. O.
    Regnault, N.
    SOLID STATE COMMUNICATIONS, 2009, 149 (27-28) : 1056 - 1060
  • [25] Unconventional fractional quantum Hall effect in bilayer graphene
    Janusz Edward Jacak
    Scientific Reports, 7
  • [26] Supersymmetric structure of fractional quantum Hall effect in graphene
    Sahoo, S.
    Das, S.
    INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 2009, 47 (03) : 186 - 191
  • [27] Optical Sensing of Fractional Quantum Hall Effect in Graphene
    Popert, Alexander
    Shimazaki, Yuya
    Kroner, Martin
    Watanabe, Kenji
    Taniguchi, Takashi
    Imamoglu, Atac
    Smolenski, Tomasz
    NANO LETTERS, 2022, 22 (18) : 7363 - 7369
  • [28] Fractional quantum anomalous Hall effect in multilayer graphene
    Zhengguang Lu
    Tonghang Han
    Yuxuan Yao
    Aidan P. Reddy
    Jixiang Yang
    Junseok Seo
    Kenji Watanabe
    Takashi Taniguchi
    Liang Fu
    Long Ju
    Nature, 2024, 626 : 759 - 764
  • [29] Theoretical aspects of the fractional quantum Hall effect in graphene
    Goerbig, M. O.
    Regnault, N.
    PHYSICA SCRIPTA, 2012, T146
  • [30] Unconventional fractional quantum Hall effect in bilayer graphene
    Jacak, Janusz Edward
    SCIENTIFIC REPORTS, 2017, 7
12345