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  • Champenois, Elio G.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)

Femtosecond Electronic and Hydrogen Structural Dynamics in Ammonia Imaged with Ultrafast Electron Diffraction

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • American Physical Society (APS),2023
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-339492
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-339492URI
  • https://doi.org/10.1103/PhysRevLett.131.143001DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20231113
  • Directly imaging structural dynamics involving hydrogen atoms by ultrafast diffraction methods is complicated by their low scattering cross sections. Here we demonstrate that megaelectronvolt ultrafast electron diffraction is sufficiently sensitive to follow hydrogen dynamics in isolated molecules. In a study of the photodissociation of gas phase ammonia, we simultaneously observe signatures of the nuclear and corresponding electronic structure changes resulting from the dissociation dynamics in the time-dependent diffraction. Both assignments are confirmed by ab initio simulations of the photochemical dynamics and the resulting diffraction observable. While the temporal resolution of the experiment is insufficient to resolve the dissociation in time, our results represent an important step towards the observation of proton dynamics in real space and time.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • H. List, NannaKTH,Tillämpad fysikalisk kemi(Swepub:kth)u1962f5l (author)
  • Ware, MatthewStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Britton, MathewStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Physics, Stanford University, Stanford, California 94305, USA (author)
  • Bucksbaum, Philip H.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Physics, Stanford University, Stanford, California 94305, USA (author)
  • Cheng, XinxinSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Centurion, MartinDepartment of Physics and Astronomy, University of Nebraska Lincoln, Lincoln, Nebraska 68588, USA (author)
  • Cryan, James P.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Forbes, RuaridhSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Gabalski, IanStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Applied Physics, Stanford University, Stanford, California 94305, USA (author)
  • Hegazy, KareemStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Physics, Stanford University, Stanford, California 94305, USA (author)
  • Hoffmann, Matthias C.SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Howard, Andrew J.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Applied Physics, Stanford University, Stanford, California 94305, USA (author)
  • Ji, FuhaoSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Lin, Ming FuSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Nunes, J. Pedro F.Department of Physics and Astronomy, University of Nebraska Lincoln, Lincoln, Nebraska 68588, USA (author)
  • Shen, XiaozheSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Yang, JieSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Chemistry, Tsinghua University, Beijing 100084, China (author)
  • Wang, XijieSLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Martinez, Todd J.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA; Department of Chemistry, Stanford University, Stanford, California 94305, USA (author)
  • Wolf, Thomas J.A.Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA (author)
  • Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USATillämpad fysikalisk kemi (creator_code:org_t)

Related titles

  • In:Physical Review Letters: American Physical Society (APS)131:140031-90071079-7114

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