Magnetic properties and magnetocaloric effect of GdGa compound
文献类型：期刊论文
| 作者 | J. Y. Zhang ; J. Luo ; J. B. Li ; J. K. Liang ; Y. C. Wang ; L. N. Ji ; Y. H. Liu ; G. H. Rao |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2009 |
| 卷号 | 469期号:1-2页码:15-19 |
| 关键词 | CrB-type structure Heat capacity Magnetocaloric effect intermetallic compounds gallium compounds room-temperature single-crystal entropy change refrigeration perovskite rga |
| ISSN号 | 0925-8388 |
| 中文摘要 | Polycrystalline GdGa compound was prepared by arc-melting method. X-ray powder diffraction reveals that GdGa crystallizes in the CrB-type structure. The Curie temperature of the compound is 183 K. A distinct peak associated with spin reorientation transition was shown around 100 K on the magnetization versus temperature Curve measured in a field of 0.05T. Isothermal magnetic entropy change (vertical bar Delta S(M)vertical bar) was estimated based on the magnetization isotherms. The maximum value of vertical bar Delta S(M)vertical bar is 4.81 J kg(-1) K(-1) under the apphed field changing from 0T to 5.0 T. The relative cooling power (RCP(S)) of GdGa compound is about 576 J kg(-1) under an applied field change of 5 T. The specific heat of the compound has been estimated within the framework of Debye and mean field approximations to evaluate the adiabatic temperature change (Delta T(ad)). (C) 2008 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32552]  |
| 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 | J. Y. Zhang,J. Luo,J. B. Li,et al. Magnetic properties and magnetocaloric effect of GdGa compound[J]. Journal of Alloys and Compounds,2009,469(1-2):15-19. |
| APA | J. Y. Zhang.,J. Luo.,J. B. Li.,J. K. Liang.,Y. C. Wang.,...&G. H. Rao.(2009).Magnetic properties and magnetocaloric effect of GdGa compound.Journal of Alloys and Compounds,469(1-2),15-19. |
| MLA | J. Y. Zhang,et al."Magnetic properties and magnetocaloric effect of GdGa compound".Journal of Alloys and Compounds 469.1-2(2009):15-19. |
入库方式： OAI收割
来源：金属研究所
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