Effect of Magnetostatic Interaction on the Single-Domain Wall Propagation in Magnetic Microwires

We propose a novel method for effective control of the single domain wall (DW) propagation in a specially designed array consisting of two magnetic microwires by the stray field from magnetically softer microwires. We have experimentally demonstrated that the DW velocity of magnetically harder Fe-rich microwire in such a linear array is affected by the stray field of magnetically softer Co-rich microwire. In addition, the DW can be braked in the Fe-rich microwire by the stray field produced by the Co-rich microwire in such a linear array. The observed experimental results are discussed in terms of the superposition of the external magnetic field and the stray field generated by a short Co-rich microwire magnetized in the opposite direction on the single DW propagation in the Fe-rich microwire.