  The interaction between atoms in a two-component Bose-Einstein condensate
(BEC) is effectively modulated by the Rabi oscillation. This periodic
modulation of the effective interaction is shown to generate Faraday patterns
through parametric resonance. We show that there are multiple resonances
arising from the density and spin waves in a two-component BEC, and investigate
the interplay between the Faraday-pattern formation and the phase separation.
