Random-Field Models

Phys. Rev. B 88, 224418 (2013) | arXiv

  • Pinned vortex lines in the 3d random-field xy model
  • Pinned hedgehogs in the 3d random-field Heisenberg model
  • Emergence of hedgehogs (black) at the intersection of three surfaces (shown in different color) corresponding to hx = 0, hy = 0, and hz = 0 in the construction of a disordered state according to Imry-Ma prescription for the n = 3 random-field model in 3d.
    • Realization "mule".
    • Realization "fish".

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