Superconducting properties and materials

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News and Comment

  • News and Views |

    The superconductor–insulator phase transition is a quantum phenomenon that reveals a competition between the superconducting phase order and charge localization. Now, microwave spectroscopy is shown to be a promising approach to investigate this effect in controllable one-dimensional Josephson arrays.

    • Alexander D. Mirlin
    •  & Ivan V. Protopopov
  • News and Views |

    A theoretical analysis of exotic superconductors suggests that it is possible to manipulate the state of their order parameter with light. This will help engineer devices from topological superconductors by patterning regions with different orders.

    • Ivar Martin
  • News and Views |

    Using electric field gating, researchers demonstrate switching from a single- to a multi-condensate superconducting state at an oxide-based interface, and show that this transition leads to an overall weakening of the superconductivity.

    • H. Hilgenkamp
    •  & A. E. M. Smink
  • News and Views |

    The measurement of the charge density wave energy gap in high-temperature superconducting cuprates uncovers new links between competing states.

    • Jiarui Li
    •  & Riccardo Comin
  • Comments and Opinion |

    Georg Bednorz, together with Karl Alexander Müller, discovered high-temperature superconductivity (HTS) in ceramics, for which they were awarded the Nobel Prize in Physics in 1987. Christine Horejs talks to Georg Bednorz about the successes and challenges of his research on HTS, applications of HTS materials, and the key ingredients for scientific discoveries.