In-plane magnetic anisotropy dependence of critical current density, Walker field and domain-wall velocity in a stripe with perpendicular anisotropy

摘要

Current and field-induced domain wall motion in a perpendicular material system having a tuneable magnetocrystalline in-plane anisotropy constant is micromagnetically simulated. It is shown that it is possible to significantly modulate critical current densities, Walker fields, and thus the domain wall velocity. In addition, suggestions that may help in determining the non-adiabatic spin transfer torque term are shown.