Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8001074 | Journal of Alloys and Compounds | 2014 | 4 Pages |
Abstract
Magnetic properties of intermetallic Tb3Al2 compound have been investigated systematically by magnetization and heat capacity measurements. Tb3Al2 compound undergoes a ferromagnetic-paramagnetic transition at Curie temperature TCÂ =Â 190Â K. Besides, another transition is observed around 86Â K, which probably corresponds to a spin reorientation transition. In addition, a strong domain-wall-freezing effect may occur in low temperature range due to the high magnetocrystalline anisotropy, and thus resulting in the large intrinsic coercivity. Tb3Al2 compound shows large magnetocaloric effect without hysteresis loss around TC, which is comparable to or even higher than those of some magnetocaloric materials in same temperature range. Furthermore, the full width at half-maximum value of adiabatic temperature change ÎTad peak for Tb3Al2 at 50Â kOe is 55Â K, more than three times of that (17Â K) for typical magnetocaloric material La(Fe0.88Si0.12)13.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Hu Zhang, Li Hong Yang, Jing Yang Li, Zhe Wang, E. Niu, Rong Ming Liu, Zhu Bai Li, Feng Xia Hu, Ji Rong Sun, Bao Gen Shen,