Thin strip in applied field swept with a constant rate
Shown movies:
Spatial distributions of magnetic field, H(x), current density, j(x), and electric field, E(x). The blue background correspond to the superconducting strip, while outside regions are black. Bottom: the magnetization hysteresis loop. The field is applied perpendicular to the strip.H, j, E, and M are normalized to Hc, jc, Ec= vcBc, and Mc, where Mc is the magnetization of a strip with uniform current density equal to jc.
Parameters:
-
pinning energy U = Uc ln( j / jc ),
Uc/kT = 33,
the maximal field Hmax = 4 Hc;
the field sweep rate dH/dt = 0.001 Hmax vc / 2w;
(Hc = d jc/ pi, w and d are the strip halfwidth and thickness,
vc is the vortex velocity at j = jc).
Other simulation pages:
