Topological matter articles within Nature

Featured

  • Article
    | Open Access

    We introduce strong tailored light-wave-driven time-reversal symmetry breaking in monolayer hexagonal boron nitride, realizing a sub-laser-cycle controllable analogue of the topological model of Haldane and inducing non-resonant valley polarization.

    • Sambit Mitra
    • , Álvaro Jiménez-Galán
    •  & Shubhadeep Biswas

  • Article |

    A hybrid topological phase of matter is discovered in the simple elemental-solid arsenic and explored using tunnelling microscopy, photoemission spectroscopy and a theoretical analysis.

    • Md Shafayat Hossain
    • , Frank Schindler
    •  & M. Zahid Hasan

  • Article |

    A local driving mechanism for solitons that accelerates both solitons and antisolitons in the same direction, called non-reciprocal driving, is introduced, showing a subtle interplay between non-reciprocity and topological solitons and providing waveguiding and wave-processing possibilities for other fields.

    • Jonas Veenstra
    • , Oleksandr Gamayun
    •  & Corentin Coulais

  • Article
    | Open Access

    Laser-based micro-focused angle-resolved photoemission spectroscopy reveals both fractionalized and marginal quasiparticles in C3-symmetric electron pockets near the Brillouin zone centre of the ferromagnetic kagome metal Fe3Sn2.

    • Sandy Adhitia Ekahana
    • , Y. Soh
    •  & G. Aeppli

  • 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
    | Open Access

    We provide evidence for superconducting topological Fermi arcs in PbBi2—a Weyl semimetal previously studied mostly for its bulk properties—from which Marjorama fermions could be derived for research in quantum computers.

    • Andrii Kuibarov
    • , Oleksandr Suvorov
    •  & Sergey Borisenko

  • 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 |

    Angle-resolved photoemission spectroscopy of CaNi2 shows a band with vanishing dispersion across the full 3D Brillouin zone that is identified with the pyrochlore flat band as well as two additional flat bands that arise from multi-orbital interference of Ni d-electrons.

    • Joshua P. Wakefield
    • , Mingu Kang
    •  & Joseph G. Checkelsky

  • 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
    | Open Access

    A spin-triplet pair density wave is discovered in the candidate topological superconductor UTe2 using superconductive scanning tunnelling microscopy tips.

    • Qiangqiang Gu
    • , Joseph P. Carroll
    •  & Xiaolong Liu

  • Article |

    A study using scanning tunnelling microscopy reveals a charge-density-wave state that is sensitive to magnetic fields and strongly intertwined with superconductivity in the heavy-fermion triplet superconductor UTe2.

    • Anuva Aishwarya
    • , Julian May-Mann
    •  & Vidya Madhavan

  • Article |

    We describe globally frustrated matter as deformations of non-orientable surfaces, with the concept of non-orientable order we demonstrate topologically protected mechanical memories, suggesting a design principle for effectively storing information in frustrated metamaterials.

    • Xiaofei Guo
    • , Marcelo Guzmán
    •  & Corentin Coulais

  • Article
    | Open Access

    A unitary protocol for braiding projective non-Abelian Ising anyons in a generalized stabilizer code is implemented on a superconducting processor, allowing for verification of their fusion rules and realization of their exchange statistics.

    • T. I. Andersen
    • , Y. D. Lensky
    •  & P. Roushan

  • Article |

    The build-up and dephasing of Floquet-–Bloch bands is visualized in both subcycle band-structure videography and quantum theory, revealing the interplay of strong-field intraband and interband excitations in a non-equilibrium Floquet picture.

    • S. Ito
    • , M. Schüler
    •  & R. Huber

  • Article
    | Open Access

    The authors report observation of tunnelling magnetoresistance in an all-antiferromagnetic tunnel junction consisting of Mn3Sn/MgO/Mn3Sn, laying the foundation for the development of ultrafast and efficient spintronic devices using antiferromagnets.

    • Xianzhe Chen
    • , Tomoya Higo
    •  & Satoru Nakatsuji

  • Review Article |

    Recent key developments in the exploration of kagome materials are reviewed, including fundamental concepts of a kagome lattice, realizations of Chern and Weyl topological magnetism, flat-band many-body correlations, and unconventional charge-density waves and superconductivity.

    • Jia-Xin Yin
    • , Biao Lian
    •  & M. Zahid Hasan

  • Article |

    Optomechanical lattices in one and two dimensions with exceptionally low disorder are realized, showing how the optomechanical interaction can be exploited for direct measurements of the Hamiltonian, beyond the tight-binding approximation.

    • Amir Youssefi
    • , Shingo Kono
    •  & Tobias J. Kippenberg

  • Article |

    Magnetically tunable three-dimensional photonic crystals are used to achieve the experimental demonstration of Chern vectors and their topological surface states, showing the Chern vector to be an intrinsic bulk topological invariant in three-dimensional topological materials.

    • Gui-Geng Liu
    • , Zhen Gao
    •  & Baile Zhang

  • Article |

    A dynamical topological phase with edge qubits that are dynamically protected from control errors, cross-talk and stray fields, is demonstrated in a quasiperiodically driven array of ten 171Yb+ hyperfine qubits in a model trapped-ion quantum processor.

    • Philipp T. Dumitrescu
    • , Justin G. Bohnet
    •  & Andrew C. Potter

  • 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 |

    A study combining spectroscopy and mathematical topology  reports the observation of linked node loops in a quantum magnet, with properties suggesting a Seifert bulk–boundary correspondence.

    • Ilya Belopolski
    • , Guoqing Chang
    •  & M. Zahid Hasan

  • Article |

    A catalogue of the naturally occurring three-dimensional stoichiometric materials with flat bands around the Fermi level provides a powerful search engine for future theoretical and experimental studies.

    • Nicolas Regnault
    • , Yuanfeng Xu
    •  & B. Andrei Bernevig

  • Review Article |

    Recent theoretical and experimental progress in identifying and understanding magnetic topological materials is reviewed, highlighting the antiferromagnetic topological insulator MnBi2Te4 and the ferromagnetic Weyl semimetal Co3Sn2S2, and future research directions are discussed.

    • B. Andrei Bernevig
    • , Claudia Felser
    •  & Haim Beidenkopf

  • Article |

    An electric-field-induced topological phase transition from a Mott insulator to a quantum anomalous Hall insulator in near-60-degree-twisted (or AB-stacked) MoTe2/WSe2 heterobilayers is reported.

    • Tingxin Li
    • , Shengwei Jiang
    •  & Kin Fai Mak

  • Article
    | Open Access

    A study using local compressibility measurements reports fractional Chern insulator states at low magnetic field in magic-angle twisted bilayer graphene, and establishes the applied magnetic field as a means to tune the Berry curvature distribution.

    • Yonglong Xie
    • , Andrew T. Pierce
    •  & Amir Yacoby

  • Article
    | Open Access

    The physics of oriented topological graphs produces anomalous non-reciprocal topological edge states that have greater robustness to disorder and defects than the best performers at present: namely, Chern states.

    • Zhe Zhang
    • , Pierre Delplace
    •  & Romain Fleury

  • Article |

    Experiments using two coupled optical ring resonators and based on the concept of synthetic dimension reveal non-Hermitian energy band structures exhibiting topologically non-trivial knots and links.

    • Kai Wang
    • , Avik Dutt
    •  & Shanhui Fan

  • Article |

    An acoustic topological gallery insulator constructed from sonic crystals made of thermoplastic rods decorated with carbon nanotube films enables the out-coupling of amplified and focused sound at audible frequencies.

    • Bolun Hu
    • , Zhiwang Zhang
    •  & Johan Christensen

  • Article |

    A study reports unconventional superconductivity and a pair density wave in the kagome superconductor CsV3Sb5, and provides a basis for understanding the microscopic origin of correlated electronic states and superconductivity in vanadium-based kagome metals.

    • Hui Chen
    • , Haitao Yang
    •  & Hong-Jun Gao

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