The Structural Phase Transition in Octaflournaphtalene

Publication: Research - peer-reviewJournal article – Annual report year: 1977

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The phase transition in octafluoronaphthalene has been investigated by Raman scattering and neutron powder diffraction. The weight of the experimental evidence points to a unit cell doubling in the a direction, but with no change in space group symmetry. Lattice dynamics calculations support this evidence and indicate that the mechanism of the phase transition may well be the instability of a zone boundary acoustic mode of librational character. The structure of the low-temperature phase has been refined and the Raman spectra of the upper and lower phases are reported.
Original languageEnglish
JournalJournal of Physics C: Solid State Physics
Publication date1977
Volume10
Journal number8
Pages1133-1149
ISSN0022-3719
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 7
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