Period n-tupling in Uniaxial Random Field XY...

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These videos are zero temperature simulations of an XY model with uniaxial random fields when subjected to a driving field which is rotated very slowly.

The uniaxial random fields(R_x) are along the x-axis in the spin subspace.

For some disorder configurations, system sizes and driving field strengths of constant magnitude which rotates with a period 2π, the spin configurations respond with a period 2π*n(>1).

 

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