The Inverse Magnetocaloric Effect of MgB2 Superconductor

Autor: Youssef H. Abdelalim, Ashraf M.Mohamed, Mahmoud A. Hamad, Hatem R. Alamri, Mohamed E. Harb, Sameh M. Elghnam
Rok vydání: 2022
Předmět:
Zdroj: Journal of Low Temperature Physics. 210:325-333
ISSN: 1573-7357
0022-2291
DOI: 10.1007/s10909-022-02863-0
Popis: The magnetocaloric effect-(MCE) of MgB2 is simulated, considering the effect of sintering temperature on MCE. The results show that MCE of MgB2 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.
Databáze: OpenAIRE
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