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Magnetic properties of ball milled Fe-40 Al at.% alloys

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5 Author(s)
Amils, X. ; Dept. de Fisica, Univ. Autonoma de Barcelona, Spain ; Nogues, J. ; Surinach, S. ; Baro, M.D.
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A direct correlation between the lattice parameter and the saturation magnetization, during the disordering (ball milling) and posterior reordering (annealing) processes, has been found in Fe-40 Al at.% compounds. These results indicate that the paramagnetic-ferromagnetic-paramagnetic transitions induced by ball milling and subsequent annealing could be related to the changes in volume, and not only to nearest neighbors effects as is commonly assumed. Moreover, these alloys have been found to become spin glass at low temperatures, independently of their structural state (ordered or disordered)

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Magnetics, IEEE Transactions on  (Volume:34 ,  Issue: 4 )