Abstract
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 language | English |
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Journal | Physical Review B |
Volume | 26 |
Issue number | 9 |
Pages (from-to) | 5168-5174 |
ISSN | 2469-9950 |
DOIs | |
Publication status | Published - 1982 |