X-rays

X-rays are a type of electromagnetic radiation with a wavelength between 0.01 and 10 nanometres. X-rays offer an important method for investigating the atomic structure of crystalline materials and nanometre-scale structures. Distant galaxies and clusters can be detected by the X-rays they emit.

Latest Research and Reviews

  • Research |

    A method to control the polarization of a Compton gamma-ray beam is developed. By using a free-electron laser oscillator with two helical undulator magnets of opposite helicities, Compton gamma-ray beams with a polarizability of 0.97 are generated.

    • Jun Yan
    • , Jonathan M. Mueller
    • , Mohammad W. Ahmed
    • , Hao Hao
    • , Senlin Huang
    • , Jingyi Li
    • , Vladimir N. Litvinenko
    • , Peifan Liu
    • , Stepan F. Mikhailov
    • , Victor G. Popov
    • , Mark H. Sikora
    • , Nikolay A. Vinokurov
    •  & Ying K. Wu
  • Research | | open

    Monitoring growth dynamics of crystalline thin materials progressively is crucial to understand the mechanism. Here, the authors develop a local step flow model to investigate the growth of C60 films on graphene coated over silicon substrates that correlates the step-edge velocity with its terrace lengths using the X-ray photon correlation spectroscopy.

    • Randall L. Headrick
    • , Jeffrey G. Ulbrandt
    • , Peco Myint
    • , Jing Wan
    • , Yang Li
    • , Andrei Fluerasu
    • , Yugang Zhang
    • , Lutz Wiegart
    •  & Karl F. Ludwig Jr.
  • Research | | open

    Radiation induced sample deformation can be a limiting factor for X-ray imaging resolution at the nanoscale. The authors report a tomographic model that estimates and accounts for morphological changes during data acquisition and enables reconstruction of a high-resolution image ab initio.

    • Michal Odstrcil
    • , Mirko Holler
    • , Jörg Raabe
    • , Alessandro Sepe
    • , Xiaoyuan Sheng
    • , Silvia Vignolini
    • , Christian G. Schroer
    •  & Manuel Guizar-Sicairos
  • Research | | open

    Modern high-resolution X-ray microscopy techniques suffer from limited field-of-view or longer acquisition times. Here the authors use structured illumination to enable fast, full-field super-resolution transmission microscopy, even for optically thick specimens and at hard X-ray energies.

    • Benedikt Günther
    • , Lorenz Hehn
    • , Christoph Jud
    • , Alexander Hipp
    • , Martin Dierolf
    •  & Franz Pfeiffer

News and Comment

  • Comments and Opinion |

    European accelerator-based X-ray facilities came together in 2017 in a consortium that will use their combined expertise to accelerate discoveries, secure funding and guide policy. A year and a half later, the chair of the consortium Helmut Dosch reflects on the ambition and opportunities of this type of cooperation.

    • Helmut Dosch
  • News and Views |

    Irradiating a PbTiO3/SrTiO3 superlattice with ultrafast UV light pulses modifies elastic and electrostatic interactions, resulting in the formation of a stable complex 3D supercrystal.

    • J. M. Gregg
    Nature Materials 18, 304-306
  • News and Views |

    Orbital angular momentum is a property of light that has many emerging applications, but has been poorly appreciated until recently. The wavelength frontier of orbital angular momentum sources is extending beyond the ultraviolet thanks to research in fields ranging from nanostructures to free-electron lasers.

    • James B. Rosenzweig
    Nature Photonics 13, 141-143
  • Comments and Opinion |

    Seven scientists share their views on some of the latest developments in attosecond science and X-ray free electron lasers (XFELs) and highlight exciting new directions.

    • Eva Lindroth
    • , Francesca Calegari
    • , Linda Young
    • , Marion Harmand
    • , Nirit Dudovich
    • , Nora Berrah
    •  & Olga Smirnova