The origin of large overestimation of the magnetic entropy changes calculated directly by Maxwell relation
文献类型：期刊论文
| 作者 | W. B. Cui ; W. Liu ; Z. D. Zhang |
| 刊名 | Applied Physics Letters
 |
| 出版日期 | 2010 |
| 卷号 | 96期号:22 |
| 关键词 | lead compounds magnetic hysteresis magnetoelectric effects metallic glasses tuning adiabatic temperature-change gd5si2ge2 |
| ISSN号 | 0003-6951 |
| 中文摘要 | By investigating the nature of the first-order magnetostructural phase transition, we point out the origin of large overestimation of magnetic entropy changes calculated by directly applying the Maxwell relation. Furthermore, if the mass variations in ferromagnetic and paramagnetic phases on temperature are taken into consideration in two-phase region, taking MnAsC(x), (Mn,Al)As, and Mn(0.994)Fe(0.004)As compounds as example, based on the modified Maxwell relation, the large overestimation and discrepancy of magnetic entropy changes disappear. The magnetic entropy changes are equivalent with the values by Clausius-Claperyon equation, indicating the validity of this modified approach. (C) 2010 American Institute of Physics. [doi:10.1063/1.3446843] |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31055]  |
| 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 | W. B. Cui,W. Liu,Z. D. Zhang. The origin of large overestimation of the magnetic entropy changes calculated directly by Maxwell relation[J]. Applied Physics Letters,2010,96(22). |
| APA | W. B. Cui,W. Liu,&Z. D. Zhang.(2010).The origin of large overestimation of the magnetic entropy changes calculated directly by Maxwell relation.Applied Physics Letters,96(22). |
| MLA | W. B. Cui,et al."The origin of large overestimation of the magnetic entropy changes calculated directly by Maxwell relation".Applied Physics Letters 96.22(2010). |
入库方式： OAI收割
来源：金属研究所
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