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Investigations on Thermomagnetic Properties of YbFe2As2
Journal of Low Temperature Physics ( IF 2 ) Pub Date : 2020-10-30 , DOI: 10.1007/s10909-020-02528-w
Mahmoud. A. Hamad , O. M. Hemeda , Hatem R. Alamri , Ashraf M. Mohamed

A phenomenological model (PM) is applied to simulate magnetocaloric effect (MCE) of YbFe2As2 (YFA) sample. Based on PM, MCE parameters are deduced as the results of simulation for magnetization versus temperature under 5 T magnetic field. The maximum value of magnetic entropy change is 2.55 J/kg K. The values of full-width at half-maximum relative cooling power and refrigerant capacity are 34 K, 87 J/kg, and 62.6 J/kg, respectively. It is recommended that YFA can be used as an effective material of magnetic refrigerator over a temperature range, covering a significant range of temperature between 0 and 50 K. This indicates that YFA is considered as the MCE material functioning at a liquid helium temperature zone.

中文翻译:

YbFe2As2的热磁性能研究

应用现象学模型 (PM) 来模拟 YbFe2As2 (YFA) 样品的磁热效应 (MCE)。基于PM,MCE参数被推导出为5T磁场下磁化与温度的模拟结果。磁熵变的最大值为 2.55 J/kg K。半峰全宽相对冷却功率和制冷剂容量分别为 34 K、87 J/kg 和 62.6 J/kg。建议 YFA 可在一个温度范围内用作磁制冷机的有效材料,覆盖 0 到 50 K 之间的一个重要温度范围。这表明 YFA 被认为是在液氦温度区起作用的 MCE 材料。
更新日期:2020-10-30
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