Domain wall propagation in Fe-rich microwires

From v(H) dependence, the critical field, Hcr, associated with the change of the slope on v(H) dependence and critical propagation fields H01 and H02 for the lower and higher field regions, respectively, are determined. All characteristics, v(H) dependence, S(H) dependence and Hcr are sensitive to the sample geometry, i.e., to the internal stresses. The origin of such dependence on internal stresses is discussed in terms of magnetoelastic energy contribution.