  We have elucidated the dynamic phase transition features and finite-size
scaling analysis of the triangular lattice system under the presence of a
square-wave magnetic field. It has been found that as the value of half-period
of the external field reaches its critical value, whose location is estimated
by means of Binder cumulant, the system presents a dynamic phase transition
between dynamically ordered and disordered phases. Moreover, at the dynamic
phase transition point, finite-size scaling of the Monte Carlo results for the
dynamic order parameter and susceptibility give the critical exponents
$\beta/\nu=0.143\pm0.004$ and $\gamma/\nu=1.766\pm0.036$, respectively. The
obtained critical exponents show that present magnetic system belongs to same
universality class with the two-dimensional equilibrium Ising model.
