Intrinsic magnetocaloric effect at a first-order magnetic transition
文献类型：期刊论文
| 作者 | B. Li ; H. Meng ; W. J. Ren ; Z. D. Zhang |
| 刊名 | Epl
 |
| 出版日期 | 2012 |
| 卷号 | 97期号:5 |
| ISSN号 | 0295-5075 |
| 关键词 | adiabatic temperature-change ni43mn46sn11 compounds phase-transitions entropy change gd5si2ge2 la0.8nd0.2fe11.5si1.5 lafe11.6si1.4 vicinity |
| 中文摘要 | A four-parameter method has been developed to determine the magnetocaloric effect associated with a first-order magnetic transition. In order to prevent misevaluation due to the intrinsically irreversible features, the transition is mimicked by a reversible process. The magnetization and the isothermal magnetic-entropy change are shown to be dependent on only four intrinsic parameters, which can be easily obtained in experiments. A new method to calculate the magnetic-entropy change is derived, which is referred to as Landau approach. The four-parameter method as well as the Landau approach are demonstrated on the famous magnetocaloric material LaFe11.5Si1.5. They benefit from the experimental investigation of MCE very much and make the characterization of MCE much easier. This may be helpful for the search of better magnetocaloric materials. Copyright (C) EPLA, 2012 |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60043]  |
| 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 | B. Li,H. Meng,W. J. Ren,et al. Intrinsic magnetocaloric effect at a first-order magnetic transition[J]. Epl,2012,97(5). |
| APA | B. Li,H. Meng,W. J. Ren,&Z. D. Zhang.(2012).Intrinsic magnetocaloric effect at a first-order magnetic transition.Epl,97(5). |
| MLA | B. Li,et al."Intrinsic magnetocaloric effect at a first-order magnetic transition".Epl 97.5(2012). |
入库方式： OAI收割
来源：金属研究所
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