Blotch wall math

[darkspeed]

Anyone know what factors regulate the speed of the blotch wall's movement through a medium?

Any one know of equations for this?

Does the blotch walls location equate to any sort of displacement?

Thanks!

[BEP]

If you are trying to move the Bloch wall then wiki 'magnetic reluctance'. There are formulas similar to Ohm's law.

Youn shift the wall on a ferrous rod with magnets on both ends by wraping a central coil on the rod. Then hit the coil with a signal.

[darkspeed]

Thanks WaveWatcher,

I was trying to decide how to calculate the transition in a small powder toroid core.

I did not know if it was different for straight line vs toroid.