Static Properties and Current-Driven Dynamics of Domain Walls in Perpendicular Magnetocrystalline Anisotropy Nanostrips with Rectangular Cross-Section

Figure 9

𝜇𝑀 results for the DW dynamics under dcs in the pinned regime. The cross-section is 𝐿_𝑦×𝐿_𝑧=60nm×3nm, and the dimensions of each rectangular notch are 𝑛_𝑥=15nm and 𝑛_𝑦=6nm. (a) DW position 𝑋(𝑡) as a function of time under dcs in the perfect adiabatic case (𝜉=0). (b)–(e) depict the Bloch and Neel pinned DW configurations under 𝑗_𝑎=0.05A/𝜇m². (f) Central DW position (𝑋_dc), (g) Amplitude (𝑋_ac), and (h) frequency 𝑓 of DW oscillations as a function of 𝑗_𝑎 in the pinned regime. (From [41]).