Characterization of domain‐wall nucleation sites in SmCo5 single crystals

摘要

Domain‐wall nucleation fields in several single crystals of SmCo5 have been measured. These results, together with a model for magnetization reversal, were used to determine the domain‐wall gradients and local demagnetizing factors at specific nucleation sites. Exposing the samples to hydrogen led to a degradation of permanent magnet properties.