An in situ Mössbauer study using synchrotron radiation

Ryo Masuda, Takaya Mitsui, Keiji Itoh, Kouji Sakaki, Hirotoshi Enoki, Yumiko Nakamura, Makoto Seto

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Abstract

We have been developing a system for in situ Mössbauer studies using synchrotron radiation (SR) to elucidate the mechanism of hydrogenation processes. In the system, samples reacts in a pressure-temperature chamber and SR-based Mössbauer spectra using variable-frequency nuclear monochromator and energy spectra of inelastic nuclear resonant scattering (NRS) of SR are measured. As a feasibility study, the temperature dependence of the Mössbauer and inelastic NRS spectra of 57Fe in c-GdFe 2H 3 under vacuum were measured. In both spectra, clear differences were observed between 373 K and 573 K. These differences can be interpreted by the change of microscopic environment around Fe at the dehydrogenation. Thus, it is confirmed that this system works well enough to perform the in-situ Mössbauer study on the dehydrogenation of c-GdFe 2H 3.

Original languageEnglish
Pages (from-to)139-142
Number of pages4
JournalHyperfine Interactions
Volume204
Issue number1-3
DOIs
Publication statusPublished - Mar 2012

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Keywords

  • GdFe
  • Hydrogen desorption
  • In situ Mössbauer study
  • Inelastic nuclear resonant scattering
  • Nuclear monochromator
  • Synchrotron radiation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Masuda, R., Mitsui, T., Itoh, K., Sakaki, K., Enoki, H., Nakamura, Y., & Seto, M. (2012). An in situ Mössbauer study using synchrotron radiation. Hyperfine Interactions, 204(1-3), 139-142. https://doi.org/10.1007/s10751-011-0470-x