Muon spin relaxation examination of transverse spin freezing (invited)

Muon spin relaxation has been used to study transverse spin freezing in a-FexZr100-x and a-Fe90-xRuxZr10. The derived phase diagrams, while generally consistent with model calculations, exhibit some significant differences. Comparison between zero-field and applied field measurements shows that Txy is strongly affected by a field and falls as B-1, contrary to mean field predictions. [copyright] 2001 American Institute of Physics