  The dynamic phase behavior of a classical Heisenberg spin system with a
bilinear exchange anisotropy in a planar thin film geometry has been
investigated by Monte Carlo simulations using different forms for the
stochastic dynamics. In simulations of the dynamic phase transition (DPT) in
films subject to a pulsed oscillatory external field with competing surface
fields, both Glauber and Metropolis dynamics show a continuous DPT. Furthermore
the field amplitude dependence of the DPT is qualitatively similar for both
Glauber and Metropolis dynamics. However, the temperature dependence of the DPT
is markedly different with the DPT being much sharper for Glauber dynamics. The
difference arises from a decoupling of the surface and bulk responses of the
film near the dynamic phase transition with Metropolis dynamics that is not
evident for Glauber dynamics.
