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Reentrant behavior in the temperature dependence of metamagnetic transitions in single crystal Nd6Fe13-xAl1+x

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6 Author(s)
McCallum, R.W. ; Ames Lab., Iowa State Univ., Ames, IA, USA ; Fisher, I.R. ; Anderson, N.E. ; Canfield, P.C.
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Nd6Fe13-xAl1+x, (δ) is a complex antiferromagnet with a Neel temperature that ranges from ~250 K to ~350 K. Studies of polycrystalline samples of the Nd compound have shown that the material undergoes a series of metamagnetic transitions as a function of magnetic field. In the present study, single crystals of δ have been grown and characterized. Low temperature magnetization studies demonstrate that there are a number of competing magnetic interactions in the material, which have different temperature dependencies. As a result, for a narrow range of fields, the δ crystals exhibit unique reentrant magnetization versus temperature behavior

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Magnetics, IEEE Transactions on  (Volume:37 ,  Issue: 4 )