Size dependence of magnetic properties of permalloy microstripe arrays

Abstract Local magnetic properties of permalloy microstripes with variable aspect ratio from 2 to 15 were investigated by scanning Kerr microscopy. The local magnetic properties of the microstripes were discovered to depend on their sizes, the location of the test parts in the microstripe and also on the design of the examined samples. It was found that the inhomogeneous dipolar fields mainly determine the magnetic field behavior of the examined microstripe arrays.