STRUCTURE AND STABILITY OF 0-DEGREES DOMAIN-WALLS LOCALIZED AT DEFECTS IN A (001)-CRYSTAL PLATE WITH COMBINED ANISOTROPY

An analysis is made of the conditions of formation and the stability r egion of static-soliton-type magnetic nonuniformities in a (001)-cryst al plate with combined anisotropy. It is shown that if demagnetizing f ields in the plate are taken into account, static solitons can localiz e at certain defects for appropriate parameters of the material. The s oliton stability region was found to be bounded by two extreme values of the material parameters, namely, those at which the soliton is unst able against collapse and at which it expands. It was also found that the soliton stability region differs considerably from that predicted theoretically in the model disregarding the finite size of the sample and the presence of defects. (C) 1998 American Institute of Physics. [ S1063-7834(98)02008-5].