Topological matter

Topological matter refers to systems in which topology is required for their characterisation. This includes materials with topological defects such as skyrmions, or topologically-protected edge modes, such as topological insulators and symmetry-protected topological phases such as topological crystalline insulators and Dirac/Weyl semimetals.

Latest Research and Reviews

News and Comment

  • News and Views |

    By measuring the photocurrent from illuminated Weyl semimetals, an optical signature of topological properties arising from Weyl fermions has been revealed, highlighting nonlinear optical effects and applications of Weyl semimetals.

    • Hongming Weng
    Nature Materials 18, 428-429
  • News and Views |

    Artificial magnetic fields have been constructed in 2D and 3D acoustic structures to manipulate sound, in much the same way as Dirac and Weyl fermions respond to magnetic fields in their quantum levels.

    • Baile Zhang
    Nature Physics 15, 307-308
  • News and Views |

    Three Nature papers report the complete topological classification of all known non-magnetic crystalline compounds, revealing thousands of new candidate topological materials waiting to be explored in the lab.

    • Étienne Lantagne-Hurtubise
    •  & Marcel Franz
  • Comments and Opinion |

    Topological structures have considerable potential in nanoelectronics and new device concepts. They are key to the design and understanding of novel functionalities in ferroic materials — that is, materials that have one or more types of built-in order such as magnetic, ferroelectric, ferroelastic and multiferroic materials.

    • Jan Seidel
    Nature Materials 18, 188-190