Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501143 | Scripta Materialia | 2008 | 4 Pages |
Abstract
TbAl2 nanocapsules with a core of TbAl2 compound and a shell of amorphous Al2O3 were synthesized by the arc-discharge technique using modified strategies. The TbAl2 nanocapsules display superparamagnetic properties between the blocking temperature of 70 K and the Curie temperature of 100 K. The absolute value of the change of magnetic entropy of the TbAl2 nanocapsules rapidly increases with decreasing temperature, reaching 23.83 J kg−1 K−1 at 7.5 K with a magnetic field change of 70 kOe.
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Authors
X.G. Liu, D.Y. Geng, J. Du, S. Ma, B. Li, P.J. Shang, Z.D. Zhang,