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Showing 1–4 of 4 results
Advanced filters: Author: Daniel Perez-Salinas Clear advanced filters

  • Time-resolved surface X-ray scattering is used to probe how light manipulates orbital order at the surface of a manganite. Femtosecond light is found to generate incoherent atomic disorder on an ultrafast timescale, consistent with the localization of polarons.

    • Maurizio Monti
    • Khalid M. Siddiqui
    • Simon E. Wall
    Research
    Nature Materials
    Volume: 25, P: 58-64

  • Light-induced phase transitions are typically described by a time-dependent mean-field theory. Here, the authors show that such a theory fails to capture the order parameter dynamics in a single layered manganite and discuss the role of disorder in ultrafast phase transitions in general.

    • Daniel Perez-Salinas
    • Allan S. Johnson
    • Simon Wall
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • The intermediate states in photo-excited phase transitions are expected to be inhomogeneous. However, ultrafast X-ray imaging shows the early part of the metal–insulator transition in VO2 is homogeneous but then becomes heterogeneous.

    • Allan S. Johnson
    • Daniel Perez-Salinas
    • Simon E. Wall
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 215-220