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Research Highlight | Materials Science Division

Anisotropic structural dynamics in monolayer crystals

In a study published in Nature Photonics, researchers indicated the observed nonequilibrium anisotropic structural dynamics agrees with first-principles modelling in both real and momentum space.

Scientific Achievement

Ultrafast x-ray measurements reveal anisotropic structural dynamics of a monolayer crystal quantitatively

Significance and Impact

The demonstration of ultrafast surface x-ray scattering unlocks a new approach for understanding behavior of two dimensional materials and surface science broadly.

Research Details

  • Samples were prepared at U of Washington
  • Ultrafast surface x-ray diffraction was performed at the LCLS and the data analysis was synergistically developed at the APS
  • The first-principle nonadiabatic calculations validate interpretation of data as reflecting anisotropic structural dynamics of monolayer crystals.

Work was performed in part at Argonne Leadership Computing Facility, Advanced Photon Source and the Center for Nanoscale Materials.

DOI10.1038/s41566-019-0387-5 (2019)

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About Argonne’s Center for Nanoscale Materials
The Center for Nanoscale Materials is one of the five DOE Nanoscale Science Research Centers, premier national user facilities for interdisciplinary research at the nanoscale supported by the DOE Office of Science. Together the NSRCs comprise a suite of complementary facilities that provide researchers with state-of-the-art capabilities to fabricate, process, characterize and model nanoscale materials, and constitute the largest infrastructure investment of the National Nanotechnology Initiative. The NSRCs are located at DOE’s Argonne, Brookhaven, Lawrence Berkeley, Oak Ridge, Sandia and Los Alamos National Laboratories. For more information about the DOE NSRCs, please visit https://​sci​ence​.osti​.gov/​U​s​e​r​-​F​a​c​i​l​i​t​i​e​s​/​U​s​e​r​-​F​a​c​i​l​i​t​i​e​s​-​a​t​-​a​-​G​lance.

About the Advanced Photon Source
This research used resources of the Advanced Photon Source, a U.S. DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.

Argonne National Laboratory seeks solutions to pressing national problems in science and technology. The nation’s first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America’s scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy’s Office of Science.

The U.S. Department of Energy’s Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, visit https://​ener​gy​.gov/​s​c​ience.