Quantum Hall articles within Nature

Featured

  • Article |

    A magnetic-field-induced Wigner crystal in Bernal-stacked bilayer graphene was directly imaged using high-resolution scanning tunnelling microscopy and its structural properties as a function of electron density, magnetic field and temperature were examined.

    • Yen-Chen Tsui
    • , Minhao He
    •  & Ali Yazdani

  • Article |

    Through inelastic light scattering chiral spin-2 long-wavelength magnetorotons are observed, revealing chiral graviton modes in fractional quantum Hall states and aiding in understanding the quantum metric impacts in topological correlated systems.

    • Jiehui Liang
    • , Ziyu Liu
    •  & Aron Pinczuk

  • Article |

    Integer and fractional quantum anomalous Hall effects in a rhombohedral pentalayer graphene–hBN moiré superlattice are observed, providing an ideal platform for exploring charge fractionalization and (non-Abelian) anyonic braiding at zero magnetic field.

    • Zhengguang Lu
    • , Tonghang Han
    •  & Long Ju

  • Article |

    We measure efficient heat conductance through the electrically insulating quantum Hall bulk and propose a theoretical model based on the role played by the localized states.

    • Ron Aharon Melcer
    • , Avigail Gil
    •  & Erez Berg

  • Article |

    Transport measurements in twisted bilayer MoTe2 reveal quantized Hall resistance plateaus and composite Fermi liquid-like behaviour under zero magnetic field, constituting a direct observation of integer and fractional quantum anomalous Hall effects.

    • Heonjoon Park
    • , Jiaqi Cai
    •  & Xiaodong Xu

  • Article |

    Thermodynamic evidence of both integer and fractional Chern insulators at zero magnetic field is reported in small-angle twisted bilayer MoTe2 by combining the local electronic compressibility and magneto-optical measurements.

    • Yihang Zeng
    • , Zhengchao Xia
    •  & Jie Shan

  • Article |

    Three tunable quantum Hall broken-symmetry states in charge-neutral graphene are identified by visualizing their lattice-scale order with scanning tunnelling microscopy and spectroscopy.

    • Alexis Coissard
    • , David Wander
    •  & Benjamin Sacépé

  • Article |

    Spontaneous crystallization of atoms occurs in a rotating ultracold Bose–Einstein condensate occupying the lowest Landau level, behaviour that is related to a quantum hydrodynamic instability driven by shear forces.

    • Biswaroop Mukherjee
    • , Airlia Shaffer
    •  & Martin Zwierlein

  • Article |

    Nanoscale imaging of edge currents in charge-neutral graphene shows that charge accumulation can explain various exotic nonlocal transport measurements, bringing into question some theories about their origins.

    • A. Aharon-Steinberg
    • , A. Marguerite
    •  & E. Zeldov

  • Article |

    Two-dimensional electronic systems in few-layer black arsenic show gate-tunable Rashba bands with unique spin–valley flavours and unconventional quantum Hall states due to synergetic spin–orbit coupling and the Stark effect.

    • Feng Sheng
    • , Chenqiang Hua
    •  & Yi Zheng

  • Article |

    The number of edge channels in quantum anomalous Hall insulators is controlled by varying either the magnetic dopant concentration or the interior spacer layer thickness, yielding Chern numbers up to 5.

    • Yi-Fan Zhao
    • , Ruoxi Zhang
    •  & Cui-Zu Chang

  • Article |

    Non-volatile electrical switching of magnetic order in an orbital Chern insulator is experimentally demonstrated using a moiré heterostructure and analysis shows that the effect is driven by topological edge states.

    • H. Polshyn
    • , J. Zhu
    •  & A. F. Young

  • Article |

    Imaging studies show that topological protection in the quantum Hall state in graphene is undermined by edge reconstruction with a dissipation mechanism that comprises two distinct and spatially separated processes—work generation and entropy generation.

    • A. Marguerite
    • , J. Birkbeck
    •  & E. Zeldov

  • Letter |

    Nonlinear optical measurements in a two-dimensional electron system embedded in an optical cavity show enhanced polariton–polariton interactions in the fractional quantum Hall regime.

    • Patrick Knüppel
    • , Sylvain Ravets
    •  & Atac Imamoglu

  • Article |

    Measurements of the thermal Hall conductance in the first excited Landau level of the quantum Hall effect show the existence of a state with non-Abelian excitations.

    • Mitali Banerjee
    • , Moty Heiblum
    •  & Ady Stern

  • Letter |

    Quasiparticles in strongly interacting fractional quantum Hall systems carry heat according to the same quantization of thermal conductance as for particles in non-interacting systems.

    • Mitali Banerjee
    • , Moty Heiblum
    •  & Vladimir Umansky

  • Letter |

    It is an long-standing goal to produce a photonic quantum Hall effect, analogous to the well-known quantum Hall effect for electrons; now an artificial magnetic field for a continuum of photons has been produced, making it possible to observe photonic Landau levels in a photonic quantum Hall material.

    • Nathan Schine
    • , Albert Ryou
    •  & Jonathan Simon

  • Letter |

    The ability of individual ions trapped in separate potential wells to simulate spin–spin interactions is demonstrated by tuning the Coulomb interaction between two ions, independently controlling their local wells and entangling their internal states with a fidelity of approximately 0.82.

    • A. C. Wilson
    • , Y. Colombe
    •  & D. J. Wineland

  • Letter |

    Placing graphene on a boron nitride substrate and accurately aligning their crystallographic axes, to form a moiré superlattice, leads to profound changes in the graphene’s electronic spectrum.

    • L. A. Ponomarenko
    • , R. V. Gorbachev
    •  & A. K. Geim

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