  Phase separations in strongly coupled fine particles in plasmas are discussed
and two-component mixtures are simulated by molecular dynamics with the
background plasma being treated as continuum. The system size of laboratory
experiments is assumed and separations into phases with a common electron
density of the background plasma are analyzed. Since the charge on fine
particles increases approximately in proportion to the size, we expect the
larger component with stronger coupling condensates from the mixture. Results
expressed in terms of strengths of Coulomb coupling and screening of the larger
component seem to be mostly similar to the one-component case, at least in
cases where the ratio of fine particle sizes is 2 and the mixing ratio is in
the range from 0.25 to 0.75.
