Domain dynamics and fluctuations in artificial square ice at finite temperatures

  title={Domain dynamics and fluctuations in artificial square ice at finite temperatures},
  author={Zoe Budrikis and Karen L. Livesey and Jason P. Morgan and Johan {\AA}kerman and Aaron Stein and Sean Langridge and Christopher H. Marrows and Robert L. Stamps},
  journal={New Journal of Physics},
The thermally driven formation and evolution of vertex domains is studied for square artificial spin ice. A self-consistent mean-field theory is used to show how domains of ground state ordering form spontaneously, and how these evolve in the presence of disorder. The role of fluctuations is studied using Monte Carlo simulations and analytical modelling. Domain wall dynamics are shown to be driven by a biasing of random fluctuations towards processes that shrink closed domains, and fluctuations… 

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