Large magnetocaloric effect in CrO2/TiO2 epitaxial films above room temperature
文献类型：期刊论文
| 作者 | T. Jiang ; L. Xie ; Y. P. Yao ; Y. K. Liu ; X. G. Li |
| 刊名 | Materials Letters
 |
| 出版日期 | 2012 |
| 卷号 | 76页码:25-27 |
| 关键词 | Epitaxial growth Thin films Magnetic material Magnetic entropy changes magnetic entropy change phase-transition perovskite oxides cro2 |
| ISSN号 | 0167-577X |
| 中文摘要 | The magnetocaloric properties of the CrO2 single crystal films epitaxially grown on TiO2 (100) substrates are studied by dc magnetization measurements. It is reported first time that there is a large magnetocaloric effect (MCE) over a wide temperature range in the vicinity of Curie temperature of CrO2 film. The magnetic entropy change increases monotonically with increasing magnetic fields and reaches a value of 8.46 J/kg.K at 385 K for the field varies from 0 to 51, which is the one among the highest for magnetic oxides and comparable to that for Gd. More interestingly the calculated relative cooling power values of CrO2 are found to vary from 143 J/kg at 1.5 T to 410J/kg at 5 T, much larger than that of CrO2 particles, due to a wide distribution of magnetic entropy changes. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60024]  |
| 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 | T. Jiang,L. Xie,Y. P. Yao,et al. Large magnetocaloric effect in CrO2/TiO2 epitaxial films above room temperature[J]. Materials Letters,2012,76:25-27. |
| APA | T. Jiang,L. Xie,Y. P. Yao,Y. K. Liu,&X. G. Li.(2012).Large magnetocaloric effect in CrO2/TiO2 epitaxial films above room temperature.Materials Letters,76,25-27. |
| MLA | T. Jiang,et al."Large magnetocaloric effect in CrO2/TiO2 epitaxial films above room temperature".Materials Letters 76(2012):25-27. |
入库方式： OAI收割
来源：金属研究所
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