Stability of magnetic recording on domain walls

The effect of a surface anisotropy of the easy-plane and easy-axis types, as well as an auxiliary layer of magnetically hard particles, on the stability of magnetic data recording on domain walls with respect to the action of external magnetic fields has been studied. It is established that the surface anisotropy does not significantly influence the stability of magnetic recording, while the auxiliary layer even considerably increases this stability and allows the information bit size to be fixed.