Monolayers of CF4 Adsorbed on Graphite, Studied by Synchrotron X-Ray Diffraction

Kristian Kjær, Mourits Nielsen, Jakob Bohr, H. J. Lauter, J. P. McTague

    Research output: Contribution to journalJournal articleCommunication


    With synchrotron x-ray diffraction we have measured the phase diagram of CF4 monolayers adsorbed on the graphite substrate UCAR-ZYX. We have found four two-dimensional crystalline phases including the 2×2 commensurate structure. Between this and the denser incommensurate hexagonal phase we find an axially compressed phase interpreted to be the stripe domain structure. Our data indicate that the order-disorder transition (melting) of the 2×2 commensurate phase as well as melting of the stripe and of the hexagonal incommensurate phases are continuous.
    Original languageEnglish
    JournalPhysical Review B
    Issue number9
    Pages (from-to)5168-5174
    Publication statusPublished - 1982


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