Giant room-temperature magnetocaloric effect in Mn(1-x)Cr(x)As
文献类型：期刊论文
| 作者 | N. K. Sun ; W. B. Cui ; D. Li ; D. Y. Geng ; F. Yang ; Z. D. Zhang |
| 刊名 | Applied Physics Letters
 |
| 出版日期 | 2008 |
| 卷号 | 92期号:7 |
| 关键词 | magnetic entropy change transition |
| ISSN号 | 0003-6951 |
| 中文摘要 | A giant magnetocaloric effect was observed at room temperature in Mn(1-x)Cr(x)As compounds with x=0.006 and 0.01. The Cr dopant reduces (or even eliminates) the large thermal hysteresis of MnAs, while it lowers the first-order transition temperature from 313 K for MnAs to 265 K for Mn(0.99)Cr(0.01)As. Near the Curie temperature, a magnetic field induces a first-order phase transition from a ferromagnetic hexagonal phase to a paramagnetic orthorhombic phase, leading to a maximum value of Delta S(M) of 20.2 J/kg K at 267 K for a 5 T field change for Mn(0.99)Cr(0.01)As. The study on the Mn(1-x)Cr(x)As system may open an important field in searching proper materials for room-temperature magnetic refrigeration. (C) 2008 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33087]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | N. K. Sun,W. B. Cui,D. Li,et al. Giant room-temperature magnetocaloric effect in Mn(1-x)Cr(x)As[J]. Applied Physics Letters,2008,92(7). |
| APA | N. K. Sun,W. B. Cui,D. Li,D. Y. Geng,F. Yang,&Z. D. Zhang.(2008).Giant room-temperature magnetocaloric effect in Mn(1-x)Cr(x)As.Applied Physics Letters,92(7). |
| MLA | N. K. Sun,et al."Giant room-temperature magnetocaloric effect in Mn(1-x)Cr(x)As".Applied Physics Letters 92.7(2008). |
入库方式： OAI收割
来源：金属研究所
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