Dynamics of solid neon monolayers.
نویسندگان
چکیده
The dynamics of two-dimensional solid neon is investigated within the self-consistent phonon theory. Phonon frequencies and lifetimes and the one-phonon dynamic form factor are evaluated as a function of temperature and lattice spacing in the self-consistent harmonic approximation with the cubic anharmonic term added. Two-dimensional solid neon is found to be highly anharmonic. It becomes mechanically unstable for interatomic sparing a =3.35 A and larger at T =0 K.
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ورودعنوان ژورنال:
- Physical review. B, Condensed matter
دوره 37 2 شماره
صفحات -
تاریخ انتشار 1988