Orthogonal motion of bubble domains in pulsed field gradients

Bubble domains in pulsed field gradients move at an angle to the direction of the gradient field. The magnitude of this skew angle is dependent on the wall structure of the domain. By placing the bubble domains in a two dimensional field well the bubbles may be constrained to move in an overall direction which is orthogonal to the gradient of the stimulating field. Measurements of the net orthogonal velocities of bubble domains have been made using a field well of this type. The velocities, which were measured as a function of the pulse width, proved to be much larger than predicted by the low field mobility for the material (Eu0.6Y2.4Ga1.1Fe3.9O12).