Magnetoelastic coupling and magnetocaloric effect in hexagonal Mn-Fe-P-Si compounds

SCRIPTA MATERIALIA

卷:67

Article

Nguyen Huu Dung¹  Zhang, Lian^1,2  Ou, Zhi Qiang¹  Bruck, Ekkes¹ 

[1] Delft Univ Technol, Fac Appl Sci, NL-2629 JB Delft, Netherlands

[2] BASF Nederland BV, NL-3454 PK De Meern, Netherlands

关键词: Magnetocaloric effect;    Magnetoelastic coupling;    Magnetic refrigeration;    Transition metal;   

DOI  :  10.1016/j.scriptamat.2012.08.036

来源: Elsevier

【 摘 要 】

A strong magnetoelastic coupling has been observed in Fe2P-based hexagonal Mn-Fe-P-Si compounds. The magnitude of the magnetoelastic coupling can be tuned by varying composition. Comparing structural and magnetic properties, we realize that hysteresis and entropy change are correlated with discontinuous changes in the lattice parameters during the transition. Small hysteresis can be obtained while maintaining the giant magnetocaloric effect. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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