Magnetic interactions and magnetization reversal in anisotropic La-Nd-Fe-B/Ta/Co multilayers and disks

Simultaneous enhancement of coercivity and saturation magnetization in high-performance anisotropic NdFeB thick films with a Dy diffusion layer

“…In addition, the position of ρ max in the μ 0 H u – μ 0 H c coordinate system provides information about the dominant type of interaction. 35,37–39 If ρ max lies on the positive μ 0 H u axis, it indicates that dipolar interaction is the main type of interaction. Conversely, if ρ max lies on the negative μ 0 H u axis, it suggests that exchange interaction plays a dominant role.…”