Abstract
The onset of ferromagnetism in Pd1-cNic alloys occurs at c=2.45 %. Dilute Pd-Ni alloys, with c=3.3% and 5.8% (Tc=20.5K and 90K) have been studied withμSR. For transverse field geometry the data show a rapid increase in the relaxation rate as Tc is approached. However when the same alloys were studied in zero field, with longitudinal geometry, there was no sign of significant depolarisation at any temperature down to 12K. This result is attributed to the high mobility of muons in these alloys, resulting in extreme motional narrowing, as the muons sample magnetic domains of many different orientations.
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Rainford, B.D., Cywinski, R., Kilcoyne, S.H. et al. Spin correlations and muon mobility in dilute Pd-Ni alloys. Hyperfine Interact 85, 323–328 (1994). https://doi.org/10.1007/BF02069442
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DOI: https://doi.org/10.1007/BF02069442