Derives area-perimeter dynamical equations for domain-wall loops and shows quantized relaxation rates of spontaneous magnetization with discrete jumps at loop collapses or interactions.
For curvature driven creep finite size effects will be important whenL opt ≈ Ld(HdR0/C) ν =L d(R0/Rd)ν > R0 withν= 3/4
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Geometric flow of planar domain-wall loops
Derives area-perimeter dynamical equations for domain-wall loops and shows quantized relaxation rates of spontaneous magnetization with discrete jumps at loop collapses or interactions.