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Title
  • en Surface Temperature Dependence of Hydrogen Ortho-Para Conversion on Amorphous Solid Water
Creator
    • en Ueta, Hirokazu
    • en Hama, Tetsuya
    • en Kouchi, Akira
Accessrights open access
Rights
  • en ©2016 American Physical Society
Description
  • Abstract en The surface temperature dependence of the ortho-to-para conversion of H-2 on amorphous solid water is first reported. A combination of photostimulated desorption and resonance-enhanced multiphoton ionization techniques allowed us to sensitively probe the conversion on the surface of amorphous solid water at temperatures of 9.2-16 K. Within a narrow temperature window of 8 K, the conversion time steeply varied from similar to 4.1 x 10(3) to similar to 6.4 x 10(2) s. The observed temperature dependence is discussed in the context of previously suggested models and the energy dissipation process. The two-phonon process most likely dominates the conversion rate at low temperatures.
Publisher en American Physical Society (APS)
Date
    Issued2016-06-23
Language
  • eng
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/2115/62697
Relation
  • isIdenticalTo DOI https://doi.org/10.1103/PhysRevLett.116.253201
  • PMID 27391719
Journal
    • PISSN 0031-9007
      • en Physical Review Letters
      • Volume Number116 Issue Number25 Page Start253201
File
Oaidate 2023-07-26