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Incommensurate–commensurate transition driven by concentration in rare gas mixtures adsorbed on graphite
Author(s) -
Marti C.,
de Beauvais C.,
Ceva T.,
Croset B.,
Goldmann M.
Publication year - 1989
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221520208
Subject(s) - xenon , krypton , argon , graphite , adsorption , noble gas , materials science , phase diagram , phase transition , lattice (music) , chemistry , atomic physics , thermodynamics , phase (matter) , physics , organic chemistry , acoustics , composite material
An unexpected anomaly is observed in the phase diagram of argon‐xenon and krypton‐xenon mixtures adsorbed on graphite: less krypton than argon is needed to drive the incommensurate–commensurate transition. A mean lattice model is developed, which describes the krypton‐xenon mixture, however, local disorder terms must be added to obtain agreement with the argon‐xenon results.