The widths of the minor hysteresis loops were investigated in epitaxially grown uniaxial magnetic garnet films as a function of the maximal magnetic field at the end of the loops. An anomalous behaviour of the minor loops was observed in several samples: the width of a minor loop decreased with increasing maximal field. The phenomenon was interpreted on the basis of domain wall nucleation. Different coercive fields (the domain wall coercive field, Hcw, and the technical coercive field, Hct) and their relation were also discussed.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Acoustics and Ultrasonics
- Surfaces, Coatings and Films