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Showing 1–10 of 10 results
Advanced filters: Author: Valerio Scagnoli Clear advanced filters

  • Ultrashort laser pulses create strain waves that generate highly mobile charges at an oxide interface. These charges propagate into the oxide layer destroying its antiferromagnetic ordering and insulating properties, providing insight into the physics of metal–insulator transitions.

    • Valerio Scagnoli
    • Urs Staub
    News & Views
    Nature Materials
    Volume: 14, P: 859-860

  • A new non-destructive spectroscopic method, ptychographic X-ray linear dichroic orientation tomography, is described, allowing the intragranular and intergranular characterization of extended polycrystalline and non-crystalline materials in three dimensions with nanoscale spatial resolution.

    • Andreas Apseros
    • Valerio Scagnoli
    • Johannes Ihli
    ResearchOpen Access
    Nature
    Volume: 636, P: 354-360

  • Magnetic metamaterials can be designed to provide models of frustrated systems that allow theoretical predictions to be experimentally tested. Here the authors realise a 2D XY model with dipolar interactions and find behaviour consistent with predictions of a low-temperature ordered state.

    • Naëmi Leo
    • Stefan Holenstein
    • Laura J. Heyderman
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • 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

  • Knowledge and control of the dynamic response in micromagnetic configurations is important both for understanding their fundamental properties and for their use in technological applications. Pump–probe magnetic laminography now unveils the evolution of the magnetization in a three-dimensional system with nanoscale resolution.

    • Claire Donnelly
    • Simone Finizio
    • Jörg Raabe
    Research
    Nature Nanotechnology
    Volume: 15, P: 356-360

  • Three-dimensional structures of vortex loops in a bulk micromagnet GdCo2 have been observed using X-ray magnetic nanotomography. The cross-section of these loops consists of a vortex–antivortex pair stabilized by the dipolar interaction.

    • Claire Donnelly
    • Konstantin L. Metlov
    • Sebastian Gliga
    Research
    Nature Physics
    Volume: 17, P: 316-321

  • Techniques exist for imaging the magnetization patterns of magnetic thin films and at the surfaces of magnets, but here hard-X-ray tomography is used to image the three-dimensional magnetic structure within a micrometre-sized magnet in the vicinity of Bloch points.

    • Claire Donnelly
    • Manuel Guizar-Sicairos
    • Laura J. Heyderman
    Research
    Nature
    Volume: 547, P: 328-331