Small-angle neutron scattering in spin reorientation transitions of (ErxNd1−x)2Fe14B hard pseudoternaries

Abstract
Critical small‐angle neutron scattering has been performed on (ErxNd1−x)2Fe14B hard intermetallics around the spin reorientation transition (SRT) temperatures, TSR. The measured scattered intensities show squared Lorentzian type behavior (for k ≤ 12 × 10−3 Å−1) and the magnetic correlation lengths show well defined anomalies at TSR, related to the scattering within the magnetic domain walls, which transform at the SRT.