Figure 3
Powder x-ray diffraction data from magnetic-field-oriented Fe3Sn powder dispersed in a clear epoxy.
A field of 4 Tesla is applied along the gelcap axis until the epoxy hardened. The x-ray data unambiguously identifies the easy magnetic axis in the basal plane, which is detrimental for a potential permanent magnet and in contradiction to the conclusion of Trumpy et al6. based on a less direct method (Mossbauer data).
