Giant magnetocaloric effect induced by reemergence of magnetostructural coupling in Si-doped Mn0.95CoGe compounds
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- 作者：YaWei Li ; Hu Zhang ; zhanghu@ustb.edu.cn ; Kun Tao ; YiXu Wang ; MeiLing Wu ; Yi Long
- 关键词：Magnetic properties ; Martensitic transformations ; Magnetocaloric effect
- 刊名：Materials & Design
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：114
- 期：Complete
- 页码：410-415
- 全文大小：1478 K
- 卷排序：114
文摘
Giant magnetocaloric effect is obtained due to the reemergence of magnetostructural coupling in Mn0.95CoGe1-xSix compounds. The working temperature window is expanded from 82 K for Mn1-xCoGe system to 100 K for Mn1-xCoGe1-xSix system. Mn0.95CoGe0.9Si0.1 experiences the forward and reverse martensitic transitions in loop and standard processes, respectively. Mn0.95CoGe0.9Si0.1 exhibits a large -ΔSM of 15.0 J/kg K under a low field change of 2 T.