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Showing 1–7 of 7 results
Advanced filters: Author: G. Jotzu Clear advanced filters

  • Ultrafast magnetic field steps are generated by light-induced quenching of supercurrents in a YBa2Cu3O7 superconductor. They exhibit millitesla amplitude, picosecond rise times and slew rates approaching 1 GT s–1.

    • G. De Vecchi
    • G. Jotzu
    • A. Cavalleri
    ResearchOpen Access
    Nature Photonics
    Volume: 19, P: 601-606

  • A time-dependent magnetic field expulsion was measured in optically driven YBa2Cu3O6.48 above the equilibrium superconducting transition temperature and all the way to room temperature. 

    • S. Fava
    • G. De Vecchi
    • A. Cavalleri
    ResearchOpen Access
    Nature
    Volume: 632, P: 75-80

  • There is evidence that K3C60 can host a photo-induced superconducting state. Now, resonant excitation at low frequencies allows this phenomenon at room temperature and low pumping fluence.

    • E. Rowe
    • B. Yuan
    • A. Cavalleri
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 1821-1826

  • Superconductivity is studied in the molecular solid K3C60 when it is pressurized and illuminated with short laser pulses. Similarities with the non-illuminated case show that superconductivity exists at higher temperatures than previously thought.

    • A. Cantaluppi
    • M. Buzzi
    • A. Cavalleri
    Research
    Nature Physics
    Volume: 14, P: 837-841

  • A transient topological response in graphene is driven by a short pulse of light. When the Fermi energy is in the predicted band gap the Hall conductance is around two conductance quanta. An ultrafast detection technique enables the measurement.

    • J. W. McIver
    • B. Schulte
    • A. Cavalleri
    Research
    Nature Physics
    Volume: 16, P: 38-41

  • Evidence for light-induced superconductivity in K3C60 was limited to optical methods due to the short lifetime of the phase. Extending the lifetime from picoseconds to nanoseconds now allows measurement of its negligible electrical resistance.

    • M. Budden
    • T. Gebert
    • A. Cavalleri
    ResearchOpen Access
    Nature Physics
    Volume: 17, P: 611-618