Incoherent inelastic neutron scattering study of antiferroelectric Cu(HCOO)2·4H2O Crystal

T. Omura, K. Itoh, C. Moriyoshi, S. Ikeda, T. Kamiyama, S. F. Parker

Research output: Contribution to journalArticlepeer-review


Incoherent inelastic neutron scattering spectra of antiferroelectric Cu(HCOO)2·4H2O and its isomorphous Cu(HCOO)2·4H2O were measured. Comparing the spectra between these crystals, we extracted the H2O-related modes from many other modes. We find new peaks in the energy range of the H2O librational modes. The spectra in this range become broad above the phase transition temperature indicating that the antiferroelectric dynamics are dominated by the order-disorder of the H2O molecules induced by the out-of-plane hydrogen motion.

Original languageEnglish
Pages (from-to)287-290
Number of pages4
JournalJournal of Neutron Research
Issue number4
Publication statusPublished - 2004
Externally publishedYes


  • Cu(HCOO)·4HO
  • Dynamics of HO
  • Incoherent inelastic neutron scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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