In the ground laboratory, microparticles of two species form a quasi-two-dimensional (q2D) binary mixture levitated in the plasma sheath, where the gravity is compensated by the electric field. Due to the presence of the ion wake in the sheath, the interaction between the particles of slightly different height is non-reciprocal. In comparison with one-component complex plasma, binary mixture brings more complexity to the system, thus the crystallization can be suppressed even for strong coupling. The structural and dynamical properties are investigated in the amorphous q2D binary complex plasmas with video microscopy in the experiments and Langevin dynamics simulations.

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