Dynamic Spin Configuration for Hard Magnetic Bubbles in Translational Motion

Abstract

The detailed model of Vella-Coleiro et al. for steady translational motion of a hard bubble (i.e., a cylindrical magnetic domain with axial Bloch lines distributed nonuniformly around the domain wall) is shown to lead to essentially the same results obtained by Slonczewski and to exactly the same results obtained by Thiele in less specific calculations. These theoretical expressions are shown to give a good description of new experimental observations of hard-bubble dynamics.