Stability of Quasiuniform Magnetization in Planar Ni Particles with Configurational Anisotropy

In this study, the conditions for maintaining quasiuniform magnetization in planar square Ni particles with configurational anisotropy are investigated. Using computer modeling, a magnetic state diagram is constructed in the coordinates of “particle size – degree of configurational anisotropy,” and the conditions under which the quasiuniform state is energetically favorable are identified. Arrays of particles with two different shapes and varying sizes are fabricated experimentally. It is found that the quasiuniform magnetization structure can be preserved in particles with lateral sizes of several micrometers.