P. A. Heiney, R. J. Birgeneau, G. S. Brown, P. M. Horn, D. E. Moncton, and P. W. Stephens, Phys. Rev. Lett. 48, 104-108 (1982).
This paper reports a high-resolution synchrotron x-ray scattering study of the freezing transition as a function of temperature and chemical porential of the two-dimensional continuous-symmetry system monolayer xenon on graphite. It is found that for a coverage of 1.1 monolayers the transition is continuous to within the substrate-determined resolution with fluid correlation lengths exceeding 100 atomic spacings. Comparison is made with current theories of solidification in two dimensions.
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