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Evidence for a commensurate-incommensurate phase transition with an intermediate fluid phase: molecular nitrogen adsorbed on nickel(110)

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Grunze,  M.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Grunze, M., Kleban, P., Unertl, W., & Rys, F. (1983). Evidence for a commensurate-incommensurate phase transition with an intermediate fluid phase: molecular nitrogen adsorbed on nickel(110). Physical Review Letters, 51(7), 582-585. doi:10.1103/PhysRevLett.51.582.


Cite as: http://hdl.handle.net/21.11116/0000-0001-7A0A-C
Abstract
Low-energy electron diffraction and thermodynamic measurements are reported for molecular nitrogen weakly chemisorbed on a Ni(110) surface in the temperature region between 87 and 150 K. A commensurate (2×1) phase transforms with increasing coverage into a sequence of smoothly varying incommensurate solid structures via a liquid-like intermediate phase. This is apparently the first experimental example of the commensurate-fluid-incommensurate phase sequence in uniaxial systems predicted by several recent theories.