Effect of Mechanical Stress on the Domain Structure of a Planar Permalloy Microparticle
The effect mechanical stress has on the magnetic structure of permalloy microparticles is studied. The particles are square with sides of 25 μm and heights of 15 to 50 nm from sample to sample. It is shown that mechanical stress alters the magnetic structure and forms characteristic bridges between magnetic domains. The lengths of the bridges can be used to quantitatively characterize the tension in a particle.