Fundamental studies of stripe-domain chopping in the presence of magnetic fields

The effects of externally uniform applied orthogonal and parallel in-plane magnetic fields on the stripe-chopping characteristics and negative vertical Bloch line replication probability have been studied experimentally and by numerical simulation on a 5 μm bubble film. The orthogonal and parallel in-plane fields on the stripe domain were varied from -50 to 50 Oe and -9 to 9 Oe, respectively, to represent actual working device parameters. The numerical simulation results agree with the experimental data, confirming the suppression of horizontal Bloch line nucleation by the external-uniform in-plane fields and the in-plane field components of the chopping conductor.