Abstract
Magnetic entropy change above 300 K. which is larger than that of gadolinium (Phys. Rev, B 57 (1998) 3478), has been observed in a Cu-doped manganites of La0.7Sr0.3Mn1-xCuxO3 (x = 0.05, 0.1). The large magnetic entropy change originated from a sharp magnetization jump is associated with a first-order crystallographic phase transition of the sample near the Curie temperature. These results suggest that the present Cu-doped manganites are suitable materials for magnetic refrigerants in the room temperature magnetic-refrigeration technology. (C) 2004 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 199-203 |
| Number of pages | 5 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 285 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1 Jan 2005 |
Keywords
- magnetic entropy
- Cu-doped manganites
- MAGNETOCALORIC PROPERTIES
- magnetic refrigeration
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