Stable states of magnetic inhomogeneities localized in the region of defects

作者：Vakhitov R M^*; Magadeev E B; Yumaguzin A R; Solonetskii R V

来源：Physics of the Solid State, 2015, 57(8): 1488-1493.

DOI：10.1134/S106378341508034X

The topology and conditions of nucleation of magnetic inhomogeneities at defects of a uniaxial ferromagnet have been investigated theoretically. It has been shown that, for specific material parameters, two types of inhomogeneities corresponding to a 0-degree domain wall, which differ in the size, amplitude, and energy, can arise at defects. It has been found that the large-amplitude inhomogeneity is a metastable formation. However, with inclusion of demagnetizing fields of the sample, it can become stable, i.e., energetically more favorable in comparison with the small-amplitude inhomogeneity. The possible contribution from this inhomogeneity to the static and dynamic processes of magnetization reversal of magnetic materials has been considered.

• 出版日期2015-8