The Inverse Magnetocaloric Effect of MgB2 Superconductor

被引：7
|
作者：
Abdelalim, Youssef H. [1 ]
Mohamed, Ashraf M. [2 ]
Hamad, Mahmoud A. [3 ]
Alamri, Hatem R. [4 ]
Harb, Mohamed E. [5 ]
Elghnam, Sameh M. [6 ]
机构：
[1] Alexandria Univ, Alexandria, Egypt
[2] Natl Res Ctr, Appl Organ Chem Dept, Cairo 12622, Egypt
[3] Higher Inst Engn & Technol, Basic Sci Dept, Alexandria, Egypt
[4] Umm Al Qura Univ, Aljamoum Univ Coll, Phys Dept, Mecca 21955, Saudi Arabia
[5] Higher Inst Comp & Informat Syst Abou Qir, Dept Comp Sci, Alexandria, Egypt
[6] Alexandria Univ, Fac Sci, Phys Dept, Alexandria, Egypt
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2023年 / 210卷 / 1-2期
关键词：
Magnetocaloric effect; Phenomenological model; MgB2; FIELD;
D O I：
10.1007/s10909-022-02863-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetocaloric effect-(MCE) of MgB2 is simulated, considering the effect of sintering temperature on MCE. The results show that MCE of MgB 2 samples is an inverse type in a temperature range of diamagnetic-paramagnetic transition. Moreover, the MCE for MgB2 is improved with high sintering temperature. The comparison between MCE of MgB2 samples and other some reported magnetic materials has been done, showing that MCE parameters of MgB2 samples are larger than some MCE parameters of La1-xCdxMnO3, La1.25Sr0.75MnCoO6, Gd1-xCaxBaCo2O5.5, Ni58Fe26Ga28, Ni2+xMn1-xGe, Ge0.95Mn0.05 film, and (001)-oriented MnAs film. It suggested that MgB2 samples could be a promising sharing candidate for MR in cryogenic temperatures.
引用
收藏
页码：325 / 333
页数：9
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