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Showing 1–13 of 13 results
Advanced filters: Author: Max Burian Clear advanced filters

  • The effect of dense plasma environment on the energy levels of an ion is usually described in terms of a lowering of its continuum level. Here the authors present an isochoric-heating experiment to measure and compare continuum lowering in single-species and mixture plasmas to provide insights for models.

    • O. Ciricosta
    • S. M. Vinko
    • J. S. Wark
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • The first experimental demonstration of saturable absorption in core-electron transitions in aluminium paves the way for investigating warm dense matter, which potentially has an important role in planetary science and the realization of inertial confinement fusion.

    • Bob Nagler
    • Ulf Zastrau
    • Justin S. Wark
    Research
    Nature Physics
    Volume: 5, P: 693-696

  • Studying the formation processes of carbon nanodots remains crucial for understanding their properties and chemical structure. Here, the authors investigate the steps involved in their formation process and provide examples for tuning the core-shell design.

    • Francesco Rigodanza
    • Max Burian
    • Maurizio Prato
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • In native photosystem II (PSII), multi-chromophore antennas surround the reaction centre, capturing light and triggering the quantized (four-flashes) photo-oxidation of water to oxygen. The PSII ‘quantasome’ is the most efficient photo-electrolyser built so far. An artificial quantasome has now been developed; it is specifically designed for oxygen evolution by self-assembling light-harvesting-perylene bisimides with a ruthenium polyoxometalate water-oxidation catalyst.

    • Marcella Bonchio
    • Zois Syrgiannis
    • Maurizio Prato
    Research
    Nature Chemistry
    Volume: 11, P: 146-153

  • Using hard X-rays for transient grating (TG) spectroscopy, fundamental excitations can be followed with femtosecond temporal and nanometer spatial resolution, selecting momenta, chemical elements and their chemical environment. The authors demonstrate the first experiment of all X-ray TG on an amorphous film of FeGd and on a silicon single crystal.

    • Eugenio Ferrari
    • Hiroki Ueda
    • Cristian Svetina
    ResearchOpen Access
    Communications Physics
    Volume: 8, P: 1-11

  • Materials that combine magnetic order and charge localization are interesting for the prospect of realizing spontaneous polarization from magnetic and charge order. Here, YNiO3 is shown to have a spiral magnetic structure, with domains of spin-rotations consistent with an electric polarization, which can be reversed by an external electric field.

    • Nazaret Ortiz Hernández
    • Elizabeth Skoropata
    • Urs Staub
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-6

  • Through precise structural engineering, perovskite nanocrystals are co-assembled with other nanocrystal materials to form a range of binary and ternary perovskite-type superlattices that exhibit superfluorescence.

    • Ihor Cherniukh
    • Gabriele Rainò
    • Maksym V. Kovalenko
    Research
    Nature
    Volume: 593, P: 535-542

  • The electrons in a plasma can further ionize the ions when the two collide. Vinko et al. now study this ultrafast process in an unconventional plasma with a density similar to that of a solid, and show that the rate is several times higher than that predicted by standard theoretical models.

    • S. M. Vinko
    • O. Ciricosta
    • J. S. Wark
    Research
    Nature Communications
    Volume: 6, P: 1-7

  • Experimental study of the interactions between intense X-rays and solid matter illustrate the generation of a solid-density plasma governed by electron–ion collisions; these results should inform future high-intensity X-ray experiments involving dense samples, such as X-ray diffractive imaging of biological samples, material science investigations, and the study of matter in extreme conditions.

    • S. M. Vinko
    • O. Ciricosta
    • J. S. Wark
    Research
    Nature
    Volume: 482, P: 59-62

  • A four-wave mixing technique is developed in the hard X-ray range. A diamond phase grating in an X-ray beam path creates a periodic excitation pattern on a sample via the Talbot effect. The response of the periodic excitation is probed by an optical pulse.

    • Jérémy R. Rouxel
    • Danny Fainozzi
    • Cristian Svetina
    Research
    Nature Photonics
    Volume: 15, P: 499-503