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Showing 1–12 of 12 results
Advanced filters: Author: D. Fausti Clear advanced filters

  • Fluctuations of atomic positions are related to several materials properties. Here the authors measure the photon number statistics via a non-equilibrium optical experiment and provide a quantum description of the interaction between photonic and phononic fields to reveal lattice dynamics fluctuations in quartz.

    • Martina Esposito
    • Kelvin Titimbo
    • Daniele Fausti
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7

  • Josephson plasma solitons are a kind of excitation predicted to occur in cuprate superconductors subject to strong electromagnetic fields. By using intense radiation from a free-electron laser, these modes are now demonstrated experimentally in the copper oxide material La1.84Sr0.16CuO4.

    • A. Dienst
    • E. Casandruc
    • A. Cavalleri
    Research
    Nature Materials
    Volume: 12, P: 535-541

  • The insulator-to-metal transition occurring in magnetite is known as the Verwey transition, and its precise mechanism has recently come under renewed attention. Using pump–probe X-ray diffraction and optical reflectivity techniques, the dynamics of excitations known as trimerons are now examined, revealing the switching limits of this ubiquitous oxide material.

    • S. de Jong
    • R. Kukreja
    • H. A. Dürr
    Research
    Nature Materials
    Volume: 12, P: 882-886

  • Free-electron lasers are a powerful new tool for studying properties and transient states of matter. Here, the authors use a novel seed scheme for generation of two XUV laser pulses of controlled wavelength and time separation that enables access to ultrafast phenomena with elemental sensitivity.

    • E. Allaria
    • F. Bencivenga
    • M. Zangrando
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-7

  • The electron dynamics of single-layer Bi2Sr2−xLaxCuO6+δ is studied as a function of doping, revealing the evolution of charge-transfer excitations from incoherent and localized (as in a Mott insulator) to coherent and delocalized (as in a conventional metal).

    • S. Peli
    • S. Dal Conte
    • C. Giannetti
    Research
    Nature Physics
    Volume: 13, P: 806-811

  • The pseudogap phase exhibited by the cuprates is almost as enigmatic as superconductivity in these materials itself. A time-resolved study performed by Cilento et al. suggests that this state can be photoexcited into a transient non-equilibrium state that is more conductive than the equilibrium state.

    • F. Cilento
    • S. Dal Conte
    • F. Parmigiani
    ResearchOpen Access
    Nature Communications
    Volume: 5, P: 1-10

  • Few-femtosecond laser pulses are used to generate squeezed mid-infrared light transients and to detect distorted quantum fluctuations of the electric field directly in the time domain.

    • C. Riek
    • P. Sulzer
    • A. Leitenstorfer
    Research
    Nature
    Volume: 541, P: 376-379