| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1503381 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Large low-field magnetic entropy changes ∣ΔSM∣ of 2.5 and 6.4 J kg−1 K−1 in MnCo0.95Ge1.14 alloy were obtained near the ferromagnetic–paramagnetic transition temperature for magnetic field changes of 398 and 796 kA m−1, respectively. The large ∣ΔSM∣ is ascribed to the sharp drop in magnetization due to the negative exchange striction of the lattice. The large low-field ∣ΔSM∣, low cost and tunable transition temperature indicate a great potential of MnCo0.95Ge1.14 alloy as a working material for magnetic refrigeration at intermediate temperatures.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Y.K. Fang, C.C. Yeh, C.W. Chang, W.C. Chang, M.G. Zhu, W. Li,