T. Schneider, E. Stoll
Physical Review Letters
We give numerical evidence that in a two-dimensional lattice-dynamical XY model with quartic anisotropy a conventional continuous phase transition occurs. The formation of clusters in the angular displacement field separated by 90°walls is also demonstrated. Moreover, we give evidence that the critical dynamics of the order-parameter fluctuations is dominated by a central peak which splits at finite wave vectors. This phenomenon is traced back to damped traveling 90°walls. © 1976 The American Physical Society.
T. Schneider, E. Stoll
Physical Review Letters
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Solid State Communications
J.M. Loveluck, T. Schneider, et al.
Journal of Applied Physics
T. Schneider, E. Stoll
Physical Review B