Saturation magnetization distribution in the vicinity of a grain boundary in a plate of a triaxial silicon-iron-type ferromagnet

The one-dimensional saturation magnetization distribution M _S(x) in the vicinity of grain boundaries (GBs) is studied in $(01\bar 1)$ plates of soft magnetic alloys of the Fe-3% Si type in the framework of the theory of micromagnetism. The mechanisms of the emergence of spatial inhomogeneities of the saturation magnetization near planar GBs are discussed. Calculations show that macroscopic regions Δx≈10 mm in extent arise near GBs because of the μ* effect. This result is supported by the experimental data.