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Showing 1–11 of 11 results
Advanced filters: Author: Mariano Trigo Clear advanced filters

  • Despite exhibiting ferroelectric features, SrTiO3 fails to display long-range polar order at low temperatures due to quantum fluctuations. An ultrafast X-ray diffraction experiment now probes polar dynamics of this material at the nanometre scale.

    • Gal Orenstein
    • Viktor Krapivin
    • Mariano Trigo
    Research
    Nature Physics
    Volume: 21, P: 961-965

  • Applications of optical laser-based techniques are limited by the long wavelengths of the lasers. Now, observations of phonons and thermal transport at nanometre length scales are reported with an all-hard X-ray transient-grating spectroscopy technique.

    • Haoyuan Li
    • Nan Wang
    • Diling Zhu
    Research
    Nature Physics
    Volume: 22, P: 483-488

  • We report the observation of narrowband terahertz emission from a quasi-one-dimensional charge-density-wave insulator, (TaSe4)2I. The origin of the emitted radiation is interpreted as a phason that obtains mass due to the long-range Coulomb interaction.

    • Soyeun Kim
    • Yinchuan Lv
    • Fahad Mahmood
    Research
    Nature Materials
    Volume: 22, P: 429-433

  • Controlling phase transitions in solids is crucial for many applications. Ultrafast laser pulses have now been shown to enable the energy-efficient generation of structural fluctuations in VO2 by harnessing the correlated disorder in the material.

    • Allan S. Johnson
    • Ernest Pastor
    • Simon E. Wall
    Research
    Nature Physics
    Volume: 20, P: 970-975

  • Single-cycle terahertz pumps are used to impulsively trigger ionic hopping in battery solid electrolytes, probing ion transport at its fastest limit and demonstrating the connection between activated transport and the thermodynamics of information.

    • Andrey D. Poletayev
    • Matthias C. Hoffmann
    • Aaron M. Lindenberg
    ResearchOpen Access
    Nature
    Volume: 625, P: 691-696

  • The Born–Oppenheimer approximation is the prevailing assumption for interpreting ultrafast electron dynamics in solids. Evidence now suggests that collisions between electrons and lattice not captured by this approximation play an important role.

    • Gilberto A. de la Peña Muñoz
    • Alfredo A. Correa
    • Mariano Trigo
    Research
    Nature Physics
    Volume: 19, P: 1489-1494

  • Radiation–matter interactions can become highly nonlinear when using high-intensity X-ray free-electron lasers. Under such conditions, it is shown that nonlinear Compton scattering has an anomalous redshift, whose origin remains unclear.

    • Matthias Fuchs
    • Mariano Trigo
    • David A. Reis
    Research
    Nature Physics
    Volume: 11, P: 964-970

  • Diffuse X-ray scattering with femtosecond resolution shows the formation and relaxation of polaronic distortions in halide perovskites. These structural changes are also quantified and correlated to transient changes in carrier effective mass.

    • Burak Guzelturk
    • Thomas Winkler
    • Aaron M. Lindenberg
    Research
    Nature Materials
    Volume: 20, P: 618-623