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Evidence for Topological Protection Derived from Six-Flux Composite Fermions

Author

Listed:
  • Haoyun Huang

    (Purdue University)

  • Waseem Hussain

    (Purdue University)

  • S. A. Myers

    (Purdue University)

  • L. N. Pfeiffer

    (Princeton University)

  • K. W. West

    (Princeton University)

  • K. W. Baldwin

    (Princeton University)

  • G. A. Csáthy

    (Purdue University)

Abstract

The composite fermion theory opened a new chapter in understanding many-body correlations through the formation of emergent particles. The formation of two-flux and four-flux composite fermions is well established. While there are limited data linked to the formation of six-flux composite fermions, topological protection associated with them is conspicuously lacking. Here we report evidence for the formation of a quantized and gapped fractional quantum Hall state at the filling factor ν = 9/11, which we associate with the formation of six-flux composite fermions. Our result provides evidence for the most intricate composite fermion with six fluxes and expands the already diverse family of highly correlated topological phases with a new member that cannot be characterized by correlations present in other known members. Our observations pave the way towards the study of higher order correlations in the fractional quantum Hall regime.

Suggested Citation

  • Haoyun Huang & Waseem Hussain & S. A. Myers & L. N. Pfeiffer & K. W. West & K. W. Baldwin & G. A. Csáthy, 2024. "Evidence for Topological Protection Derived from Six-Flux Composite Fermions," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45860-5
    DOI: 10.1038/s41467-024-45860-5
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    References listed on IDEAS

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    1. Xu Du & Ivan Skachko & Fabian Duerr & Adina Luican & Eva Y. Andrei, 2009. "Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene," Nature, Nature, vol. 462(7270), pages 192-195, November.
    2. R. de-Picciotto & M. Reznikov & M. Heiblum & V. Umansky & G. Bunin & D. Mahalu, 1997. "Direct observation of a fractional charge," Nature, Nature, vol. 389(6647), pages 162-164, September.
    3. Kirill I. Bolotin & Fereshte Ghahari & Michael D. Shulman & Horst L. Stormer & Philip Kim, 2009. "Observation of the fractional quantum Hall effect in graphene," Nature, Nature, vol. 462(7270), pages 196-199, November.
    4. D. Maryenko & A. McCollam & J. Falson & Y. Kozuka & J. Bruin & U. Zeitler & M. Kawasaki, 2018. "Composite fermion liquid to Wigner solid transition in the lowest Landau level of zinc oxide," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
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