Room temperature magnetocaloric effect in CrTe1-xSbx alloys

被引:14
作者
Hamad, M. Kh [1 ]
Martinez-Teran, E. [2 ]
Maswadeh, Yazan [3 ,4 ]
Hamad, Rami [1 ]
Al-Nahari, E. G. [1 ]
El-Gendy, A. A. [2 ]
Ziq, Kh A. [1 ]
机构
[1] King Fahd Univ Petr & Minerals, Dept Phys, Dhahran 31261, Saudi Arabia
[2] Univ Texas El Paso, Dept Phys, El Paso, TX 79968 USA
[3] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA
[4] Cent Michigan Univ, Sci Adv Mat Program, Mt Pleasant, MI 48859 USA
关键词
FERROMAGNETISM;
D O I
10.1016/j.jmmm.2020.167171
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate the magnetocaloric effect (MCE), relative cooling power (RCP) and crystalline structure in Sb substituted CrTe1-xSbx (0 <= x <= 0.2) alloy. The Rietveld refinement of the XRD pattern of CrTe1-xSbx showed the emerging of pure hexagonal NiAs structure with P6(3)/mmc (194) space group with increasing Sb substitution. We detect a slight increase in the basal plane alpha-lattice parameter, with a much larger reduction in the c-axis. Magnetic isotherms were measured in the temperature range of 50-400 K. The results revealed an increase in the maximum entropy change vertical bar S-M(T,H)vertical bar with Sb-substitutions in the temperature range (similar to 285-325 K). Moreover, The RCP values increased by about 33% with 20% Sb substitutions. These findings suggest that CrTe1-xSbx alloys can be used in room temperature magnetic cooling at fraction of the coast of pure Gd element the porotype magnetic material for magnetic refrigeration.
引用
收藏
页数:5
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