A single magnetic transition in a-Fe91Sc9

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Abstract
The magnetic ordering behavior of Fe91Sc9 has been studied by Mössbauer spectroscopy and magnetization measurements. Mössbauer spectra in an external field parallel to the γ beam clearly shows that the noncollinearity develops as soon as magnetic order appears, indicating a single transition to an asperomagnetic state, in contrast to the mean‐field theory and Monte Carlo simulations which predict a transition from paramagnet to spin glass for strongly frustrated alloys. A possible origin for this discrepancy is discussed.